People in Brazil are examining debris believed to have belonged to a European spacecraft in 2014. Photo: Getty. Sea of ​​Japan (also known as East Sea) The phenomenon of space debris falling to the ground and causing damage was first recorded in 1969. That year, Japanese diplomats informed the United Nations of an unidentified object from space falling from space. down and collided with a Japanese cargo ship moving off the coast of Siberia (Russia). The collision seriously injured five crew members. Not long after, a Soviet ship at that time appeared to search for the wreckage. The Japanese official said the debris was identified by experts as part of a Soviet spacecraft. However, this information was initially kept secret by Tokyo because it did not want to create a conflict with Moscow, according to AP. Northwest Territories, Canada The danger of objects from space became apparent in 1978, when Cosmos 954, the Soviet Union’s atomic-powered satellite, crashed to Earth. The incident caused radioactive debris to be scattered throughout the Northwest Territories, Alberta, and the Canadian province of Saskatchewan. After the incident, the Canadian government organized a large-scale “Operation Morning Light” to search for tiny pieces of radioactive material that fell on the Arctic tundra. The cost for this campaign is nearly 14 million CAD (equivalent to 11.5 million USD). A fragment of the satellite Cosmos 954. Photo: United States Department of Energy. Canada demanded compensation from the Soviet Union at that time in the amount of 6 million CAD (equivalent to 5 million USD), but Moscow ended up paying only half of that amount. State of West Australia, Australia In 1979, Skylab – the first space station of the US Space Agency (NASA) – broke up while re-entering the Earth’s atmosphere. The incident caused a lot of debris to fall across the farm town of Esperance in West Australia, Australia. The Skylab space station was photographed by the last crew before it broke up on July 11, 1979. Photo: NASA. “It’s the most beautiful fireworks display you’ll ever see,” Brendan Freeman, a retired farmer, told ABC. The debris did not cause major damage, but for fun, the town of Esperance authorities wrote a $ 400 NASA fine for littering. NASA did not pay the fine, possibly out of fear of setting an unfavorable precedent. In 2009, a DJ in the city of Barstow, California (USA) called for fundraising and brought the fine to pay the town of Esperance. Lakeport, California, USA Early one weekend in 1987, a retired aircraft mechanic living in a town near Mendocino National Forest in northern California heard what sounded like gunfire outside his bedroom window. After searching, he discovered a scorched metal piece more than 2m long lying in the alley next to the house. An analyst with the US Air Force determined that the object was most likely a piece of debris dropped from a Soviet missile. This rocket has previously been seen flying across the sky while burning up and falling to Earth. “It’s interesting because things like that don’t happen around here very often,” Maggie Pickle, the mechanic’s neighbor, told the AP. Tulsa, Oklahoma, USA Lottie Williams holds up a piece of debris that hit her shoulder from a US Delta II rocket in 1997. Photo: Tulsa World. One morning in 1997, Lottie Williams was walking with friends in Tulsa City Park when she saw what appeared to be a comet streaking across the sky. This object fell on Mrs. Williams’ shoulder, but the impact was very light, almost without feeling. This object was determined by scientists to be most likely a fragment of a US Delta II rocket. The fragment was kept by Mrs. Williams as a souvenir. “I had to be very lucky for the debris to be so light. It was one of the strangest things that ever happened to me,” Williams told NPR in an interview years later. East Texas and Louisiana, USA, In 2003, the US space shuttle Columbia broke up while re-entering the atmosphere, killing 7 astronauts on board. In places where the debris of the shuttle hit the ground, temporary memorials were erected for the crew. People in rural areas along the Texas-Louisiana state border reported seeing debris from the ship falling into a water storage tank or through the roof of a dental office. Someone even tried to sell a fragment on the e-commerce site eBay for $ 10,000. In the end, 84,000 pieces of wreckage from the wrecked ship were collected after an extensive search in swamps, woodlands, and grasslands. These debris were used to rebuild the ship and determine the cause of the disaster. Ivory Coast In May 2020, another Chinese Long March 5B rocket also crashed to Earth. The rocket was initially thought to have landed in the Pacific Ocean, but some people reported hearing a sonic boom and seeing metal shards falling from the sky. This shows that some parts of the Long March 5B missile fell on the village of Mahounou, in Ivory Coast. China’s Long March 5B rocket launch in late April in Hainan province. Photo: Getty. However, there were no reports of human casualties after the incident. The discovery of a piece of pipe more than 12 meters long also seems to help this area get more attention. Grant County, Washington State, USA The most recent space debris incident occurred just over a month ago, when a rocket owned by private aerospace company SpaceX exploded over the Pacific Northwest. The explosion created a “show of light,” which some initially mistook for a meteor shower, according to The Verge. A piece of equipment from the rocket fell on a farm in Washington state, leaving a mark more than 12cm deep in the ground, The Verge reported. A similar object was also discovered by fishermen off the Oregon coast a few days later, but authorities have not confirmed whether this is debris from a SpaceX rocket.

For most of us, the best way to repair broken items is when they look new, cracks and chips are covered. But the Japanese art of Kintsugi follows a different philosophy. Photo: Powell River Peak. Instead of hiding the cracks, Kintsugi makes them part of the restored object, showing their history. This method uses gel lacquer and metal powder (gold, silver, platinum or copper), creating items that are judged to be even more beautiful than the original. Photo: Think Theology. Kintsugi is said to have originated in the 15th century, when a shogun broke his favorite tea bowl and asked for it to be repaired. But after fixing with an iron pin – a popular fix at the time (pictured), the beauty of the bowl was gone. Photo: Knjitea. Frustrated, the shogun asked a craftsman to come up with a more aesthetically pleasing solution, and Kintsugi was born. Although this approach gives the impression that the item is soldered with gold, it was originally a form of lacquer art. Photo: ArtVision360. The fragments are held together with urushi sap. The final layer of lacquer is coated with gold powder and then polished. Retrieving and handling urushi is difficult because the resin is toxic. However, once it dries and hardens, the toxins in the plastic are neutralized, making it safe to use the repaired item. Photo: Deeper Japan. Kintsugi is an extension of wabi-sabi, the philosophy that beauty lies in imperfection and value lies in simplicity. Restoring the debris usually takes up to three months, then let it dry for a few weeks and then coat the grooves with gold. Photo: Leo de Melo. Adding metal powders makes the weld stand out, showing a piece of the history of the piece, as well as showing how important they are to the owner. For example, a tea master would use a bowl repaired with Kintsugi to pay respects to a guest. Photo: Deeper Japan. Today, thanks to new technologies, Kintsugi uses new materials, which have better cohesion and are more durable than the old method. However, the value and meaning behind this art remains intact and has become an inspiration for many contemporary artists. Photo: Deeper Japan.

Clinical trials of the Pfizer vaccine showed up to 95-96% effectiveness against invading coronaviruses. According to the New York Times , each batch of Pfizer-BioNTech vaccine with 7.5 million doses is produced in 60 days. The most advanced mRNA technology The Pfizer-BioNTech vaccine uses mRNA technology. This vaccine is recommended by the US Centers for Disease Control and Prevention (CDC) for use in people 12 years of age and older. The SARS-CoV-2 virus carries proteins that allow it to enter human body cells. These proteins – known as spike proteins – are the subject of research in the production of vaccines and drugs to treat Covid-19. Coronavirus. Photo: New York Times. Pfizer-BioNTech’s vaccine is based on the genetic makeup of the SARS-CoV-2 virus to create artificial protein spikes. Vaccines use messenger RNA (mRNA), a type of genetic material that human cells process to make proteins. The messenger RNA molecules are very fragile, so they will be broken down by natural enzymes in the human body if injected directly into the human body. To protect the mRNA in the vaccine, Pfizer-BioNTech wraps the mRNA molecules in an oil bubble made of microscopic fat particles. mRNA molecule. Photo: New York Times. Due to their unstable nature, the mRNA molecules in the vaccine will be degraded at normal temperatures. Therefore, vaccines of Pfizer-BioNTech need to be stored at deep cold temperatures, at least -70 degrees Celsius or less. To keep the vaccine of Pfizer-BioNTech stable, special containers are required, including dry ice, heat sensors and GPS trackers. Inject vaccines into the body After vaccination, the molecular particles in the vaccine will collide and fuse with human body cells, releasing mRNA. Human body cells will read the genetic content contained in the mRNA and from there produce protein spikes. The mRNA molecule from the vaccine is eventually destroyed by human cells forever. Vaccine molecules interact with cells. Photo: New York Times. Some protein spikes will form spikes, which rise to the surface of the cell and protrude outward. Cells that have been affected by the vaccine also break down the protein into small pieces on the surface. The protein spikes protruding from the cell, and the protein molecule on the cell surface, will eventually wake up the human immune system. When cells that have interacted with the vaccine die, their fragments contain many protein spikes and protein fragments. These fragments will be picked up by a type of immune cell called molecular antigen-presenting cells (APCs). APC cells activate helper-T cells. Photo: New York Times. Fragments of protein spikes will stick to the surface of APC cells, until helper-T cells detect these fragments. The helper-T cells then trigger the immune system to produce antibodies against the coronavirus. Antibody production Other immune cells, called B cells, can collide with the coronavirus spike protein on the surface of the cell that has interacted with the vaccine, or the floating protein spike debris. Some B cells can adhere to protein spikes. Helper-T cells activate B cells that help produce antibodies. Photo: New York Times. When B cells are activated by helper-T cells, they begin to produce antibodies that attack the spike protein. Antibodies neutralize corona virus. Photo: New York Times. The antibody produced will attach to the spike protein of the invading corona virus. Antibodies mark the virus for later destruction by the body’s immune system. More importantly, the antibody prevents the viral spike protein from attaching to the healthy cells of the human body. To destroy the virus, APC cells activate another type of immune cell called cytotoxic-T cells. This cell is responsible for finding and destroying cells that have been infected by the virus through the signal of protein spike fragments on the surface. Cytotoxic-T cells destroy infected cells. Photo: New York Times. Remember information about corona virus Pfizer-BioNTech’s vaccine is given in two doses, 21 days apart, to help the immune system work most effectively against the corona virus. But because of the lack of time to study, scientists cannot be sure how long the immunity created by the vaccine will last. Preliminary research shows that within 10 days of receiving the first dose, the vaccine begins to build a strong immune system against the virus. It is likely that, after several months of vaccination, the number of antibodies and cytotoxic-T cells will gradually decrease. But the immune system also contains special cells that store information about the corona virus for years, even decades. Each vial of vaccine contains 5 injection doses of 0.3 ml. Vaccines need to be thawed and diluted with saline. After dilution, the vaccine must be used within 6 hours.

However, up to now, there have been many times of debris falling from space on Earth, including an event that happened in 2020. Photo: CNN The good news is that the debris falling on Earth generally poses little threat to human safety. As Jonathan McDowell, an astronomer at the Center for Astrophysics at Harvard University, told CNN: “It’s not the end of the world.” Even so, the issue still raises related questions about debris in outer space, how uncontrollably they fall to Earth, and what precautions should be taken when that happens. out? There have been many times of debris falling back to Earth Most of the debris would be burned in the atmosphere before having a chance to make any impact on the Earth’s surface. However, some large objects, like rockets, may remain intact when returned to Earth and are also likely to fall into populated areas. In 2020, one of the largest debris in space flew over the skies of Los Angeles and Central Park in New York City before falling into the Atlantic. This is an empty core from Chinese missiles, weighing nearly 20 tons, is the largest piece of uncontrolled trash when it fell back to Earth since 1991 and is the fourth largest piece ever. Other larger pieces are from NASA’s Skylab space station in 1979, the missile core of Skylab in 1975, and the Soviet Salyut 7 space station in 1991. The space shuttle Columbia from 2003 could also be included in the list. This is because NASA lost control of the ship when it returned to Earth. How many debris are floating in space? The answer is a lot. Above us there is a “cloud” of more than 9,000 tons of space debris – the equivalent of the weight of 720 school buses. This cloud contains hundreds of thousands – maybe even millions – of objects orbiting uncontrollably, including used rocket propulsion engines, dead satellites and debris from the army’s anti-satellite missiles. These debris are concentrated in the orbital regions closest to the Earth’s surface. And while it does not pose a significant threat to humans on the ground, it does pose a threat to many active satellites that provide a number of services such as climate tracking, studying Earth climate. Land and telecommunications service providers. These debris also threaten the International Space Station (ISS). The ISS station had to readjust its orbit several times last year due to space debris. “A few years ago, we had about 1,000 satellites in orbit, but now we have 4,000 satellites,” said McDowell. The tricky problem is that space transport experts do not have a complete map of the objects orbiting the Earth. Potential collisions are being tracked using government or private trackers on the ground, but the process is largely predictable. When will Chinese rockets return to Earth? The Long March 5B missile is expected to return to Earth’s atmosphere around May 8, according to Defense Department spokesman Mike Howard. Space Command is currently monitoring the missile’s path. According to Howard, the point of return to Earth’s atmosphere could only be accurately determined a few hours ago difficult to start falling back to Earth. However, Space Control Unit 18 will update the missile’s exact location via the Space Track website. Astrophysicist McDowell explained that determining where debris could fall to Earth is almost impossible at this point because the rocket’s travel speed can vary and with only 1 change. Very small is enough to greatly change the direction of the missile. “We expect it to return around May 8-10. During those two days, it will travel around the Earth about 30 times and at a speed of about 18,000 km / h “, according to Mr. McDowell. Still, the oceans are still the safest place for debris to land, as it occupies most of the Earth’s surface. Do people need to be on guard? There’s no need to be on guard, said Mr. McDowell. “The risk of it causing some damage or hitting someone is very small. It can still happen, but the chance of it hitting you is extremely small. I won’t waste a second worrying about it. Because there are still other bigger things to think about, ”said McDowell.

According to Pentagon French speaker Mike Howard, fragments of the 5B Truong Chinh missile, with a length of more than 30 meters and a weight of 22 tons, is expected to fall back into the atmosphere “around May 9”, at the same time. added that the US Space Command is closely monitoring the missile’s trajectory. Using data from the US military, Space Track predicts fragments of the missile will fall between 1:44 a.m. and 4 a.m. on May 9 (international time). Space Track also noted that because it was impossible to determine the correct time of the fall, locating the falling point of the debris is very difficult, but confirmed that it will continuously update the missile wreck’s location through its website. Chinese Truong Chinh 5B missile. Photo: CNN “Risk is possible, there will be some damage but quite small, not insignificant, but the ability to affect people is extremely small” – astrophysicist Jonathan McDowell of the University Harvard (USA), stated. The European Space Monitoring and Monitoring Agency (EU SST) has predicted a “risk zone” includes “any part of the Earth’s surface, including almost all of the Americas, Africa and Australia. , parts in southern Asia (Japan) and Europe such as Spain, Portugal, Italy and Greece “. The extent of the debris’s influence is such a result of the rocket debris’s dizzying rate, even small effects during the fall can dramatically change its trajectory. . “We expect the debris to reappear sometime between May 8 and May 10,” said McDowell. However, as explained by Harvard astrophysicist, the oceans are still the safest place to bet for debris to land, as seas occupy 70% of the Earth’s surface area. China successfully launched the space station’s core module into space with the Truong Chinh 5B rocket, on April 29. Photo: REUTERS Earlier, on May 7, China’s Ministry of Foreign Affairs confirmed that most of the debris from the missile would burn when it falls to Earth and is less likely to cause any harm, CNN said. Chinese Foreign Ministry spokesman Uong Van Ban said Beijing is very focused on bringing the rocket’s upper deck back into the atmosphere: “As far as I know, this missile uses a special design. Much of the rocket will be burned and destroyed in the return to atmosphere “. The Beijing government also criticized that the news that the missile unit had fallen out of control and could cause harm was exaggeration by the West. Chinese experts say the situation is nothing to worry about. Fragment of China’s Truong Chinh 5B missile is expected to hit Earth on May 9. Photo: CNN Previously, on April 29, China successfully launched the space station’s core module called Thien Hoa into space with the Truong Chinh 5B boosters from the Van Xuong Spacecraft Launch Center in Hainan Province. This is one of the steps for the country to complete its mission of setting up its own space station, a key effort in China’s plan to master space, probe the Moon, and even Mars. But instead of falling to a predetermined place in the sea like the rockets before, the central stage of the Truong Chinh 5B boosters began to rotate around the globe in a state of out-of-control, according to CNN. Dropping debris from Chinese missile launches to Earth is not uncommon in China. In May 2020, the core of the first Truong Chinh 5B rocket crashed on Ivory Coast, damaging a number of buildings, luckily causing no injuries.

However, an incident later occurred when the core of a missile weighing up to 20 tons lost control and fell back to the ground at an extremely high speed. According to forecasts by both the US space agency (NASA) and the European Space Agency (ESA) at that time, the missile is likely to fall on May 8-10 – and currently the latest forecasts show. It will fall on May 9. Missile Truong Chinh 5B. Description: Thanh Luan Its location is a densely populated place or falls into the sea or uninhabited area is still a big question mark, so this event attracts the attention of most of the world’s major powers. . But many experts advise people in the countries concerned that “should not be too worried”. Specifically, sharing his opinion with CGTN channel on May 8, according to expert Zhang Xiaotian working at the School of Astronaut, Beihang University, told CGTN: “ As for the missile’s return to the ground, we need it to fall into a predetermined safe zone and there are many measures to achieve this goal such as choosing the launch location, controlling the brake. degrees at different stages “. China’s Ministry of Foreign Affairs spokesman Uong Van Ban also said that the ability of fragments or missile cores to fall to the ground is extremely low because the missile is designed with special technology. . The Hindustantimes Indian newspaper quoted the Paris-PSL Observatory astronomer Florent Delefie as saying: “ The chance of the debris falling in an inhabited area is very low, with the probability of 1 in 1 million “. Jonathan McDowell, an astrophysicist at the Smithsonian Center for Astrophysics, Harvard, in an interview on Space.com even said that the probability of a personal danger being hit by a piece of paper is just 1 in many billions of possibilities. “The chance of someone getting hurt is probably 1% and the chance of you getting hurt is 8 billion times smaller than that, so don’t worry about it.” Even so, McDowell also criticized China for its somewhat irresponsible actions: “Usually, after the missile completes its mission, the engine will be reactivated and dropped into the ocean or inhabited place, so the damage is very little. However, China did not do that,” he said. they put rockets in orbit and then set them free. “ Theverge quoted Dan Oltrogge – founder of Space Safety Coalition as well as leading expert at Commercial Space Operations Center expressed optimism about the missile core will fall into the sea. He said: “Most of the Earth’s surface is covered with water (70%), so there is almost no danger, the chance of it falling into a residential area is not zero but there would be little to worry about if it does. fell into the ocean “. “The chance of anyone getting hit by debris is very low, extremely low”, he stressed . Have there been instances of missile debris hit causing significant injury? In fact, in more than six decades since humans put their first satellite into the air, there have been no cases of debris hitting people causing significant injuries, according to Stijn Lemmens, an expert at Mechanical European Space Agency. The likelihood of falling into the residential area of ​​the Truong Chinh 5B missile core is very low. Photo: Bulletin The China Space Agency, the main unit responsible for this incident, still keeps information related to the missile secret, so it is still possible to estimate the specific drop position of the missile core. a big question. Most recently, they just made an official announcement. This is not the first case of a Chinese space object losing control, before in 2018, a space station named Thien Cung 1 weighing 8 tons also lost control and fell back to the ground. but no one was injured. Articles translated from sources: Space, CGTN, Hindustantimes, Theguardian

The scene of the launch of the Truong Chinh – 5B missile in Hainan on April 29 (Photo: Tan Hoa commune). According to the Hong Kong news site the East On May 9, China’s Office of Construction to put people into space on Sunday morning said that fragments of the end-propeller compartment of the Truong Chinh – 5B (CZ-5B) rocket launched by China from the Van Xuong launch site, Hainan will return to the atmosphere at 9:12 am on the same day (Hanoi time); the area in which it re-entered the atmosphere lies above 28.38 ° east longitude and 34.43 ° north latitude, in the Mediterranean sky. The European Union’s Center for Space Monitoring and Monitoring (EUSST) had previously predicted that the rest of the missile bay would return to the atmosphere at 2:32 a.m. GMT on Sunday (9:32 a.m. Internal on Sunday), with an error of adding or subtracting 139 minutes. According to EUSST, the probability of a missile fragment falling in densely populated areas is very low, but it can still happen uncertain due to the object’s uncontrolled. Thien Ha module of 100m3 capacity was launched by missile into space. American company Aerospace Corporation again stated that missile fragments will fall to the ground at 3:30 am UTC on Sunday (ie 10:30 am Hanoi time) with an error of plus or minus 4 o’clock. Actual drop times may vary. The Truong Chinh – 5B missile was launched into space by China on April 29 to bring the 100m3 Thien Hoa core module into orbit, this part will be the place for 3 astronauts to live and live on the Air Station. the Chinese Heavenly Palace. The launch of the core module is the first of the 11 missions required to complete the installation of a space station. The carrier was successfully put into orbit, but the rocket’s propulsion chamber lost control and fell back to Earth. According to the Ministry of Foreign Affairs of China, the fragment of the missile will catch fire when it enters the atmosphere, so the potential for harm is extremely low. The missile falls down (all brown parts and 2 support chambers) with the trajectory of the debris moving around Trac Dat. Black dot is the falling point predicted by Aerospace on May 8 (Image: UDN). However, there has been controversy surrounding the rocket’s falling back to Earth. The US Army Space Command said on May 4 that they “are closely monitoring and reporting to the public the location of the missile debris. It is currently impossible to determine where it fell to Earth. Asked during a press conference on May 6 whether the US shot down fragments of Chinese missiles, US Defense Secretary Lloyd Austin said: “We expect it to fall where it will not cause it. casualties; hope it will fall into the ocean or the like “and said the US” has no plans to shoot it down “. During a press conference at the White House on May 5, when asked: “If the Chinese missile fragments cause harm to the US, will the US claim compensation,” White House spokesman Jen Psaki said: “No. it’s time to discuss this. We are tracking its position through Space Command and hopefully not in the end. ” “The US pays attention to solving the problem of space junk caused by increased activities in space,” she emphasized. The US hopes to cooperate with the international community to promote responsible behavior in the space. Photo of debris caught fire while crossing Italy on the night of May 8 (Photo: virtualtelescope.eu). Meanwhile, the Chinese side accused the Western media of overstating the fact that their missiles “lost control” and could cause great damage. According to the Reuters , sheet Global Times China’s claim that reports of the missile “out of control” and can cause damage are just “Western hype”. The Chinese Ministry of Foreign Affairs believes that the probability of harm caused by this process is extremely low. Mr. Uong Van Ban, spokesperson for China’s Ministry of Foreign Affairs on May 7, when answering questions from reporters during a regular press conference, said that international practice allows rockets to enter the atmosphere to throw and destroy. He said: “As far as I know, this missile applies a special engineering design, most of the parts will be worn out and destroyed during the return, potentially harmful to cargo operations,” he said. zero and above ground is extremely low; The relevant authorities will promptly notify the outside situation ”. The Chinese rocket propulsion chamber fell down before (Image: weibo). The Chinese side is very interested in monitoring the reintegration of the missile debris atmosphere, but declined to answer questions about where it was expected to fall, said Uong Van Ban; instead, he advised reporters to “consult the relevant agencies”. However, the National Aerospace Bureau of China did not respond to relevant questions from reporters Bloomberg . Since the US Skylab space station was out of orbit and crashed into Western Australia in 1979, most space programs have tried to avoid sending large missiles into orbit, because in this case Their return to Earth will be difficult to predict. According to the news of The Guardi This uncontrolled China Changzheng-2B missile compartment is 30 meters long, 5 meters wide and weighs 21 tons, it could become one of the largest space debris falling to the ground. Photo of Truong Chinh – 5B rocket propulsion compartment falling on May 6 (Photo: virtualtelescope.eu) This missile compartment is currently freely acrobatic around Earth, is about to enter the lower atmosphere, and is expected to fall uncontrollably down to Earth. Its orbital tilt is 41.5 degrees, meaning that areas of the Earth in the range from the north like Chicago, New York, Rome, Beijing, Hanoi and south to New Zealand, Chile are all on the Road moves and may fall. Although scientists expect that most of the debris will be burned and destroyed as it enters the atmosphere, there are still some that will fall to different places on earth, these parts include a metal and glass numbers have not been burned. Some scientists believe that it is irresponsible for China to let the missile debris return to Earth uncontrollably. “They (China) are responsible,” said Paulo Lozano, director of the Space Thrust Laboratory at the Massachusetts Institute of Technology (MIT). They either did not provide enough information or did enough work during the design process to prevent the space object from returning uncontrollably back to Earth. I think that’s very important …. Hope they won’t fall on land, especially in public places, the consequences will be very bad. ” Lozano said that almost all missile launches in the US require a second stage. During this phase, the engine will restart to bring the missile back to earth in an area that does not have any. designated person. However, the Truong Chinh – 5B missile does not have this design. According to Jonathan Black, director of the Maritime and Aviation Systems Laboratory at Virginia Tech, the technology has been in use for the past ten years. Although the Truong Chinh – 2B missile was just launched in late April, its technology is still decades ago. Scientists speculate that the high cost may be the reason China is not adopting new technologies. The propellant compartment of the Chinese missile fell to Guangxi province before (Image: weibo). Harvard astrophysicist Jonathan McDowell criticizes China for being negligent in this regard, not letting objects heavier than 10 tons fall to Earth from space. He said potentially dangerous debris may not be completely burned when returned to the atmosphere at supersonic speeds, but the probability of falling into the sea is higher because 70% of the earth’s surface is covered by Ocean. However, Mr. McDowell told Reuters that it was still possible that missile debris could fall on the ground; can even fall in densely populated areas, like fragments of another Truong Chinh-5B rocket that crashed on Côte d’Ivoire (Ivory Coast) in May 2020, destroying many buildings, But luck did not cause any casualties. Follow the latest information from the page the East at 11:33 a.m.: The China Space Construction Office announced: fragments of the last compartment of the missile carrying Truong Chinh -5B returned to the atmosphere at 10:24 am. The fall zone was located at 72.47 ° east longitude and 2.65 ° north latitude over the Indian Ocean near the Maldives, most of the equipment was burned down during the reintegration of the atmosphere.

People in Brazil are examining the debris believed to have belonged to a European spacecraft in 2014. Photo: Getty. Sea of ​​Japan (also known as East Sea) The phenomenon of debris falling from space falling to the ground and causing damage was first recorded in 1969. That year, Japanese diplomats informed the United Nations of an unknown object from the falling space. Down and collide with Japanese cargo ships moving off Siberia (Russia). The collision caused serious injuries to 5 crew members. Shortly after, Soviet ships appeared at that time looking for debris. Japanese officials said the debris was identified by experts as part of the Soviet spacecraft. However, this information was initially kept private by Tokyo because it did not want to create conflicts with Moscow, according to the report AP . State of the Northwest Territories, Canada The danger of an object from space became apparent in 1978, when Cosmos 954, a satellite powered by the atomic energy of the Soviet Union, fell to Earth. The incident caused radioactive debris to spread throughout the Northwest Territories, Alberta, and Canada’s Saskatchewan province. After the incident, the Canadian government organized a large-scale “Morning Light Campaign” to search for tiny pieces of radioactive material falling on the arctic tundra. The cost for this campaign is nearly 14 million CAD (equivalent to 11.5 million USD). A fragment of satellite Cosmos 954. Photo: United States Department of Energy. Canada demanded that the Soviet Union compensate at the time for CAD 6 million ($ 5 million), but Moscow ended up paying only half of that amount. State of West Australia, Australia In 1979, Skylab – the first space station of the US Aerospace Agency (NASA) – crumbled while returning to Earth’s atmosphere. The incident caused many debris to fall throughout the farm town of Esperance in West Australia, Australia. The Skylab space station was photographed by the last crewman before falling apart on July 11, 1979. Photo: NASA. “It’s the best fireworks display you’ll ever see,” described Brendan Freeman, a retired farmer. ABC . The debris did not cause great damage, but for fun, the town authorities Esperance wrote a $ 400 fine letter to NASA for littering. NASA did not pay the fines, possibly out of fear of setting a negative precedent. By 2009, a DJ in the city of Barstow, California (USA) called to raise funds and bring fines to pay the town of Esperance. Lakeport, California, USA An early weekend in 1987, a retired aircraft mechanic living in a town near Mendocino National Forest, in northern California, heard gun-like noises outside the bedroom window. After searching, he discovered a scorched metal piece longer than 2 meters in the alley next to the house. Analysts at the US Air Force determined this object was most likely a piece of debris falling from a Soviet missile. This missile has previously been seen flying across the sky while being burned and dropped to Earth. “It’s interesting because things like that don’t happen around here very often,” said Maggie Pickle, the mechanic’s neighbor. AP . Tulsa, Oklahoma, USA Lottie Williams held up a piece of debris that fell on her shoulder from a US Delta II rocket in 1997. Photo: Tulsa World. One morning in 1997, Lottie Williams was walking with friends in Tulsa city park when he saw something like a comet across the sky. The object fell on Mrs. Williams’ shoulder, but the force of the impact was very light, almost insensitive. The object identified by the scientists was most likely a piece of the US Delta II rocket. Fragments are kept by Mrs. Williams as a souvenir. “I must be very lucky for the debris to be so light. It was one of the strangest things that ever happened to me, ”Mrs. Williams told NPR in the interview many years later. Eastern region of Texas and Louisiana, USA In 2003, the American space shuttle Columbia collapsed while returning to the atmosphere, killing seven astronauts on board. Where the wreckage of the space shuttle hit the ground, temporary memorials were built for the crew. Rural residents along the Texas-Louisiana border reported seeing debris from the ship fell into a water storage tank or through the roof of a dental office. Someone even tried to sell a piece of fragment on an eBay e-commerce site for $ 10,000. Finally, 84,000 pieces of debris from the ship in distress were collected after extensive searches in swamps, forests, and grasslands. These debris were used to rebuild the ship and identify the cause of the disaster. Ivory Coast In May 2020, another Chinese 5B Truong Chinh missile also crashed on Earth. The missile was initially thought to have crashed into the Pacific Ocean, but some people reported hearing ultrasonic explosions and seeing metal debris falling from the sky. This shows that some parts of the Truong Chinh 5B missile fell in the village of Mahounou, on the Ivory Coast. China’s Truong Chinh 5B missile launch in late April in Hainan province. Photo: Getty. However, there were no reports of human casualties following the incident. The discovery of tube fragments longer than 12 m also seems to help this area get more attention. Grant County, Washington State, USA The most recent cosmic waste incident happened just over a month ago, when a private aerospace company SpaceX rocket exploded over the Pacific Northwest. The explosion created a “light show,” which caused some at first to mistake it for a meteor shower, according to the report The Verge . A piece of equipment from the missile crashed on a farm in Washington state, leaving a mark more than 12 cm deep on the ground, The Verge reporting. A similar object was also discovered by fishermen off the coast of Oregon a few days later, but authorities have not confirmed whether this is debris from the SpaceX missile or not.

On the morning of May 9 (Beijing time), the China Manned Space Engineering Office (CMSEO) confirmed that the fragments of Long March 5B had fallen into the Indian Ocean near the Maldives, the rest was loaded. fire in the atmosphere. The Truong Chinh 5B missile carrying parts for the Chinese space station was launched in Hainan province on April 29. Photo: Reuters. “They are jealous of China’s progress” In addition to the confirmation of the missile falling into the sea, the Chinese media said that Western newspapers are exaggerating the incident, discrediting the country’s space exploration program. “Their hype and smear are in vain”, CNN citing a Chinese source, saying that American scientists are “acting against conscience” and “anti-intellectual”. “These people are jealous of the advancement of Chinese aerospace technology… Some of them are even using loud words to interfere with our future missile launch missions, with the goal of building stations. private universe “, this page says. Earlier, the director of the US Aerospace Agency (NASA) Bill Nelson criticized China after debris from the Long March 5B rocket fell into the Indian Ocean. “It is clear that China has not met the standard of responsible space waste,” said Nelson in a statement on May 9. Compared to Russia (formerly the Soviet Union) or the US, China is a latecomer in the space field. They launched their first satellite in 1970, 13 years behind the Soviet Union and 12 years behind the US. In recent times, the field of Chinese space exploration has been invested more and more strongly. They are the first country to send a probe into the dark of the Moon in 2019, before bringing some rock samples on the Moon back to Earth by the end of 2020. The reason China wants to build a space station On the US side, this country has taken action that China sees as “hostile”, to prevent its space mission. Since 1999, the United States has imposed a restriction on exports of satellite technology to China. In late 2011, the US Congress also passed laws restricting cooperation between NASA and China. That is why Chinese astronauts are not allowed to board the International Space Station (ISS), the only space station in orbit to be completed, operated by cooperation between the US and Russia, Europe, Japan and Canada. The Long March 5B is the largest space object to return uncontrollably to Earth in nearly three decades. Photo: ABC. That is the reason why China plans to build the Tiangong (Tian Cung) space station, which means “heavenly palace”. In late April, the Long March 5B was launched to bring the first module to the space station. But then, the rocket fell into a state of uncontrollability until it was gradually pulled down by Earth’s gravity. Although criticizing the West for “bluffing” the Long March 5B out of control, the Chinese media and experts have ignored the explanation of why the missile makes the world worried. According to the CNN , the Earth’s launch and landing phases of the missile can be predicted. When falling into orbit, manufacturers often equip controls to direct missiles into the sea or keep them in a “graveyard orbit”, which helps them hover in space for decades. This is the second incident related to the Truong Chinh 5B missile. Last year, a 12-meter debris of the missile crashed into a village on Cote d’Ivoire, damaging businesses and homes. Estimated to weigh more than 20 tons, the Long March 5B is the largest space object to return to Earth uncontrollably in nearly three decades. SpaceX’s test missile explodes again when it lands on the launch pad SpaceX’s Starship SN9 rocket landed and exploded on 2/2. This is the first phase prototype of a reusable rocket line that will help send people to Mars.

Space Station Skylab was launched by the US Aerospace Agency (NASA) in 1973. The agency had planned Skylab to operate for at least 10 years, but that did not happen. The sun radiates more energy than expected, increasing Skylab’s pull back to Earth. Image: NASA . On the night of July 11, 1979, Skylab returned to Earth and exploded over the Indian Ocean, west of Australia. Debris from the 85-ton space station is scattered across fields and small towns. Although no one was injured, the town of Esperance (Australia) fined $ 400 to NASA for littering. However, this agency does not pay. Until 2009, a new radio station in California (USA) paid this fine. Photo: State Library of Western Australia. Not only Skylab, there have been many instances where objects from space fell uncontrollably down to Earth. November 10, 2013, satellite GOCE The European Space Agency (ESA) caught fire and plunged into the Atlantic due to running out of fuel a month ago. According to the Space , GOCE is used to map the Earth’s gravity. Previously, scientists were concerned that the 1-ton satellite could fall to the mainland. Image: Space . Atmospheric Research Satellites (UARS) was launched by NASA in September 1991 with space shuttle Discovery to analyze the Earth’s ozone layer. In December 2005, a satellite weighing 6.5 tons, worth $ 750 million, was stopped by NASA before it fell to Earth in September 2011. While most of the satellites were burned, the remaining 532 kg of UARS fell to Canada, Africa, parts of the Pacific, Atlantic and Indian oceans. Image: NASA . NASA launches satellites Pegasus 2 weighed 11.6 tons in 1965 to study asteroids orbiting the Earth. The data was sent back to NASA by Pegasus 2 for about 3 years, then kept on orbit for 11 years. On November 3, 1979, the satellite returned to Earth and then exploded, debris plunging down the middle of the Atlantic Ocean. Image: NASA . Operated for 9 years from 1971 to 1982, Salyut 7 is the last space station in the Salyut program of the Soviet Union. On February 7, 1991, the 22-ton space station lost control, crashing to Earth after a period of time out of orbit while still connected to the Cosmos 1686 spacecraft. Both burned and exploded in the sky. Argentina, some fragments found in Capitan Bermudez region, no human casualties have been reported. Image: Space Age . On February 1, 2003, space shuttle Columbia exploded in the sky above Texas (USA) when returning to Earth, killing 7 astronauts. Investigations revealed that 82 seconds after the 100-ton ship took off, an insulating foam fell onto the carbon fiber board, puncturing the hull and damaging the body temperature protection while it was in service. speed 28,968 km / h. Although no one on the ground was injured, the Columbia event marked the second deadliest disaster in NASA’s space shuttle program. Image: NASA . Cosmos 954 , the secret satellite of the Soviet Navy used to spy on US nuclear submarines, launched on September 18, 1977 lost control. On January 24, 1978, a 3.8-ton satellite crashed northwestern Canada, causing radioactive debris to scatter over a large area. The Government of Canada asked the Soviet Union to pay $ 6 million for the search and cleanup campaign, but this country only accepted to pay $ 3 million. Image: NASA . On July 27, 2016, a boosters Long March 7 (Truong Chinh 7) China’s free fall, exploding in the American western skies. The image of a missile-generated light trail in the sky is widely shared on the Internet. The Long March missile chain is part of China’s plan to build an outer space station. Image: Matt Holt . Space Station Tiangong 1 (Heavenly Palace 1) China exploded over the southern Pacific on April 1, 2018. The 8-ton space station was launched in 2011, receiving 2 crew from 2012-2013 before completing the mission. In March 2016, China lost contact with Tiangong 1, allowing the space station to fall freely due to the gravity of the Earth. Image: CMSA . SpaceX’s test missile explodes again when it lands on the launch pad SpaceX’s Starship SN9 rocket landed and exploded on 2/2. This is the first phase prototype of a reusable rocket line that will help send people to Mars.

This weekend, China’s Long March 5B (Truong Chinh 5B) missile will fall back to Earth. Instead of falling into the sea as originally planned, the Long March 5B was orbiting the Earth and lost control. The silence from the China National Space Administration (CNSA) coupled with the rocket’s too fast travel speed makes scientists at other space research institutions do not have enough computational data, see rockets. Where will it fall. Hard to have human casualties The Long March 5B missile is 30 meters long, weighs 22.5 tons, and when it falls to the ground the equivalent of a small plane falling and debris flying 160 km away. This is the comment of Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics. In 2020, a 50 meter long fragment also from a Chinese rocket crashed into the Atlantic, just 13 minutes after passing New York City with 9 million inhabitants. However, a 12-meter-long piece may have crashed in a village on Ivory Coast, according to the report The Verge , from the source of the local newspaper Afriksoir. The villagers heard a loud explosion, lightning, and noise at the same time that scientists calculated missile debris. The 12-meter-long debris that fell on the village of Mahounou on Ivory Coast in May 2020 is believed to have belonged to the Truong Chinh 5B missile. Photo: Afrik Soir. The orbits re-enter the atmosphere of rockets, which are inherently difficult to predict, because they travel at speeds of thousands of kilometers per hour. Scientists can only calculate accuracy after the rocket has returned to the atmosphere and began to fall. However, according to Mr. McDowell’s estimates, there will be no loss of life. Rockets will usually be burned most of the time when they pass through the atmosphere. Only a few parts, which are designed to be more heat resistant, can fall back to Earth. However, with a planet’s surface area of ​​up to 75% that is water, and also much of the ground uninhabited, the probability that missile debris could fall right where humans are inhabited is very low. “The worst scenario is that when a small piece falls on a person, that person is more likely to die. The probability that a lot of people get a debris fall is not high,” said Jonathan McDoWell. With a landing speed of about 160 km / h, debris falling on structures and vehicles will also leave great consequences. However, since the debris will fall in an area up to 160 km in diameter, the likelihood that they will fall into an inhabited, residential area is also very low. The Long March 5B missile contains the core module of the new space station. Photo: Getty Images. According to the Independent Over the past decade there have been about 100 satellites, and the wreckage of the missile returns to Earth every year, with a total mass of 150 tons. However, most of them do not cause serious consequences. The mass of space junk that fell in 2020 is the fourth largest block to fall back to Earth in history, after the Skylab space station in 1979, the Skylab’s rocket deck in 1975, and the Salyut-7, the Soviet space station, At 1991. Big problem with space junk This is not the first time that CNSA has had problems with objects landing on Earth from space. In 2018, the Tiangong-1 space station freely fell into the Pacific, between Australia and Chile. The Ivory Coast incident in May 2020 was also caused by another Long March 5B missile. Although there is little potential to cause material or life damage, the disposal of rockets and satellites out of use still leaves many scientists a headache. When a satellite expires, becomes unusable, it resumes its orbit. A boosters after completing a mission to put the spacecraft into orbit will also be left in the air. And when two objects in the universe collide with each other and create millions of debris, they are also left in space. Cosmic debris are surrounding the Earth. Photo: Nikkei. No one has put a ship on board and collects debris in space. All materials left by humans so far are known as cosmic trash. NASA scientist Donald Kessler believes that colliding with two large pieces of space debris can create a domino effect, causing thousands of smaller debris to continue orbiting the Earth. Mr. Kessler warns there will be a day when space junk becomes so much that we cannot launch a satellite without hitting another object. By then, we will be prisoners on our own planet, and will not blame anyone else but humans. As for the controllable missiles, the space agencies will calculate to bring them back to Point Nemo, which is considered the “graveyard” of spacecraft in the ocean. With the closest distance to the mainland of 2,250 km, the South Pacific Ocean is considered the “pole of the ocean” and is no different than a desert region in the middle of the sea.

Chinese Truong Chinh 5B missile leaves its launch pad. According to this map, anywhere between 41 degrees North and 41 degrees South can be affected by the rocket’s debris. He said the boosters will enter Earth’s atmosphere as early as May 8. According to ROSCOSMOS, “a portion of the rocket will no longer exist in the dense gas layers of the atmosphere” but “individual non-flammable structural elements can reach the surface of the Earth”. Meanwhile, the Aerospace Corporation non-profit aerospace organization predicts, the time of the Chinese missile crashes to Earth will occur at dawn on 9/5 (international time), the error plus – minus in 28 hours. They also published a map of the potential impact area – relevant to the area provided by ROSCOSMOS. The Chinese missile’s orbital tilt is currently 41.5 degrees, meaning it could fall anywhere from the north relative to New York, Madrid and Beijing and as far south as southern Chile and Wellington. New Zealand, these are all regions with the highest population densities in the world. The ROSCOSMOS map shows the drop zone of the Chinese missile’s center. Speaking to the press, US Defense Secretary Lloyd Austin expressed his hope that the Chinese missile will fall into the ocean and it is estimated that it will fall between May 8 and 9. On May 6, Mr. Austin said at this time, the US has no plans to shoot Chinese missile debris that is expected to fall back into the atmosphere this weekend. Since the missile is traveling at an average speed of 7 km / s, it is difficult to predict where it will hit. US Department of Defense spokesman Mike Howard said the US Space Command was monitoring the missile’s trajectory. However, the US was only able to determine the exact point within a few hours before it fell. According to Howard, the 18th Space Control Squadron will provide daily updates on the missile’s position on the Space Track website. Ted Muelhaupt, an expert in space debris at the US-based nonprofit Aerospace Corporation, told ABC News that the central floor of the Truong Chinh 5B rocket was probably among 10 large objects. can fall to the planet into 1 piece. The bulldog has a central floor weighing 22 tons. China’s Long March 5B missile hull areas are likely to fall over the next few days. Photo: Aerospace Corporation According to SpaceNews, the 22-ton central deck of the Truong Chinh 5B missile is in a state of out of control and could fall to Earth. Instead of falling to the intended location at sea like the previous rockets, the central stage of the Truong Chinh 5B boosters began to rotate around the globe in China’s helplessness. On April 28, the China National Space Administration (CNSA) launched a Long March 5B booster rocket carrying a core module called “Thien Hoa” weighing 22.5 tons into space (part of the space station. Heavenly Palace). The launch went quite smoothly until the core of the missile suddenly deviated from its intended flight trajectory. It is known that the core layer of the body (weighing 19.6 tons, 30m long and 5m in diameter) is currently flying around in the LEO orbit at an extremely fast speed. According to a SPACECOM representative, the Chinese missile is currently flying at 162-306km above the ground, indicating that it has begun to gradually decrease altitude from 170-372km. Essentially the drag of the Earth’s atmosphere sooner or later pulls the upper missile body out of the LEO orbit, but with its erratic speed and trajectory it makes it possible to accurately predict the location and The moment the rocket will hit the ground becomes difficult.

The 21-ton core of the Chinese Truong Chinh 5B missile was taken on the night of 5/5/2021. Photo: Project Virtual Telescope According to the Daily Mail, the Italy-based Virtual Telescope (VTP) project captured the core of the missile, which looks like a bright spot of light as it crashes through their Elena robot telescope. Chinese rockets have caught international attention throughout the week as debris of the 21-ton vehicle is expected to fly back to Earth uncontrolled over the weekend, with the risk of landing in areas with residents. According to Italian researchers, the Truong Chinh 5B missile has moved “extremely fast”, as it soared through a distance of about 700 km above the VTP’s telescope. The Space.com site said that Gianluca Masi, the Virtual Telescope project’s astronomer who took the photo, wrote in the photo description: “At the time of the photo shoot, the rocket core was far from the telescope. Ours is about 700 km, while the Sun is only a few degrees below the horizon, so the sky is extremely bright, making it difficult to take pictures. captured this giant fragment “- Masi wrote in the description of the photo. “This is another brilliant success, demonstrating the amazing ability of robotic vehicles to track such objects,” Mr. Masi affirmed. On April 29, China launched a 5B Truong Chinh missile that carries the main module of its own space station into the orbit of the Earth. This module, called Thien Ha, is 16.6 meters long. Watch the video of China launching a rocket carrying module of the Tianhe space station on April 29: Space agencies and astronomers around the world are now closely monitoring the 5B’s trajectory in the hope of being better prepared for the moment it falls back to Earth. The latest information shows that fragments of this giant rocket are expected to fall back to Earth on May 8 and the US government has warned they could fall into populated areas. US Department of Defense spokesman John Kirby revealed the intended date of return to Earth’s atmosphere, but said the exact timing of that event was currently unidentifiable. Mr. Kirby said the government at this time “does not have enough information to be able to formulate specific plans”. However, he asserted that if there was information, they would share it appropriately.
The US Space Command is currently monitoring the Chinese missile as carefully as possible and giving daily updates to its position on the Space Track website. The Truong Chinh 5B Y2 missile carrying the Thien Ha core module was launched from the Van Xuong launch pad in Hainan province, China on April 29. Photo: THX Jonathan McDowell, an astrophysicist at Harvard University (USA) and a specialist in orbital tracking, notes that the core of Truong Chinh 5B is the heaviest object that has fallen out of control through the atmosphere in nearly three decades. century. Before breaking, this core had a weight of nearly 21 tons. The last time a heavier object fell out of control was 1991, when the 43-ton Soviet Salyut-7 space station crashed on Argentina. Mr. McDowell calculated that the core was about to fall to Earth 7 times heavier than the second floor of the Falcon 9 rocket, which burned in the sky of Seattle, about a month ago. If returned to the atmosphere at night, it could produce a similar light trail. Despite US Department of Defense concerns, many industry observers believe the situation is not to the point of causing panic. The risk of being hit by debris is extremely small, says analyst McDowell. Meanwhile, Mr. Song Zhongping – a Chinese aerospace expert – on May 5 said that the rocket fragments returned to Earth is completely normal. China launched the Truong Chinh 5B rocket in May 2020 (photo) to test a vehicle for a program to send people to the Moon. Photo: Daily Mail Wang Ya’nan – editor-in-chief of Aerospace Knowledge magazine – added that during the missile development, Chinese aerospace officials have carefully considered from the initial stage of missile design and selection. Select launch location, to launch status and flight trajectory. “Most of the debris will burn up during its return to Earth’s atmosphere,” Wang explained. Only a very small fraction can fall to the ground and is likely to fall into the ocean or areas far away from where humans are active. Since Chinese rockets are mainly made of lightweight materials, most will easily be burned during high-speed fall through the atmosphere. Besides, Truong Chinh rocket also uses environmentally friendly fuel, so once the parts fall into the ocean, it will not cause water pollution. According to Space, if there is debris damage, the United Nations Convention on Liability of the Outer Space Treaty states that the launching country “must bear full responsibility for damages. caused by their space objects on the Earth’s surface or to an aircraft, and are responsible for damage caused by its fault in space “. The only time this convention was invoked was in 1978, when a nuclear-powered Soviet satellite, Kosmos 954, spread radioactive debris across the Canadian Arctic, leading to a campaign. urgent cleaning and cost at least S $ 3 million in 1981 (equivalent to $ 7.5 million today).

The largest missile center in China is falling out of control in orbit, after it carried part of the new space station into space last week. The object is expected to fall to Earth during an “uncontrolled re-entry” on May 8 or 9. Whether it falls harmlessly into the ocean or affects the land where humans live, the reason the Chinese space program allows this to happen is – again – unclear. And given China’s planned launch schedule, it is entirely possible that such uncontrolled re-imports continue to occur. Missile Truong Chinh 5B in a launch in 2020. (Photo: Xinhua) The China space program has a series of major spacecraft achievements over the past six months, including bringing back lunar rocks and sending spacecraft into orbit around Mars. However, the programs seem to continue to pose a small, though small danger to people across the planet without control of the path of the launched missile. Jonathan McDowell, an astrophysicist at the Center for Astrophysics in Cambridge, Massachusetts, who tracks objects in space, says: “I think it was their negligence. I think it is irresponsible. The uncontrolled drop is the reinforced core of Truong Chinh 5B, designed to lift large, heavy sections of the space station. For most rockets, the lower layers typically fall back to Earth shortly after launch. The upper layers, when they reach orbit, often reactivate the engine (after releasing the load), directing them to re-enter deserted areas such as the oceans. For the past three decades, only China has lifted layers of such large rockets into orbit and let them crash somewhere, said Dr. McDowell. “It is a technical decision based on possibilities.” He said that Chinese engineers were able to design the trajectory of the rocket so that it would remain in orbit, fall back to Earth shortly after launch, or they might have planned to activate the booster. fig to get it out of orbit in a non-dangerous way. Ted J. Muelhaupt, director of the Center for Orbital Research and Aerospace Debris re-entry, says: “The reintegration design cannot be taken lightly, it’s something the world as a whole has done because we need it.” As for Truong Chinh 5B reinforcement, it could be anywhere between 41.5 North latitude and 41.5 South latitude. That means Chicago, located further north, is safe, but big cities like New York could suffer. On May 6, Aerospace Corporation, a federally funded nonprofit that conducts research and analysis largely, predicts the re-entry will take place on May 8 at 11:43 p.m. Eastern time (10:43 p.m. 9/5 Vietnam time). If that is correct, the debris could fall to Northeast Africa, in Sudan. The timing uncertainty – a 16-hour fluctuation – and location are still large. A day ago, Aerospace predicted the re-entry site an hour in advance in the Eastern Indian Ocean. The calculations are complicated by many factors, for example, the sun. The increase in the intensity of the solar wind – charged particles sprayed by the sun – will inflate the Earth’s atmosphere, increasing its force on the object and increasing its rate of fall. The movement of the object also affects. The US Space Command and the Russian space agency are both monitoring the missile division. The Russian statement noted that the re-import will not “affect the territory of the Russian Federation” . The US agency meanwhile promised to update it regularly before the event was likely to take place. Currently the object is moving at a speed of about 29,868 km / h, so prediction of position also changes with each minute. China plans to launch several more launches in the coming months as the construction of its third space station is completed, known as the Heavenly Palace, or “palace in the sky”. That would require additional flights of giant rockets and the possibility of more uncontrolled re-imports leaving people on the ground anxious to follow, even when mishaps from single parts. very small. Jen Psaki, White House press secretary, said on May 5: “For the mutual benefit of all nations, it is necessary to act responsibly in space to ensure the safety, stability, security and long-term sustainability of space activities”. America hopes to push “Responsible spatial behavior”.

On April 29, at the Van Xuong spacecraft launch center in Hainan province, China successfully launched the first module of the Tianhe space station with the Truong Chinh 5B rocket, marking an important step in the build the country’s own space station. However, instead of falling to a predetermined place in the sea like the previous rockets, the central stage of the Truong Chinh 5B boosters started spinning around the Earth in a low orbit in a state of out-of-control. With a weight of about 21 tons, 30m long and 5m wide, the remnants of the Truong Chinh 5B rocket are flying in orbit around the Earth every 90 minutes / rev, at a speed of 27,600 km / h at an altitude of over 300 kilometer. Since the end of last week until now, this remaining part has decreased altitude by nearly 80km. According to the observations of underground amateur astronomers, this missile is in a very unstable state. Some calculations show that the central floor of the Truong Chinh 5B missile will plunge into the atmosphere on May 8. When it crosses the Earth’s atmosphere, it could be burned, but it is likely that large pieces of the missile will remain and will fall scattered over an area of ​​160km wide. Worth mentioning, this is not the first time that China’s Truong Chinh 5B missile has fallen into a state of out-of-control during the biosphere. In May 2020, a similar incident happened. Beijing is expected to have at least 10 more similar launches, bringing all additional equipment into orbit, before completing the station by 2022. China’s Truong Chinh 5B missile was launched into orbit on April 29 at the Wenchang launch pad, southern China. . Prior to the US Space Command’s forecast that the 2021-035B Truong Chinh 5B (Long March 5B or Chang Zheng 5B) missile core, called 2021-035B, was capable of falling uncontrollably on Earth on the day. May 8-9, many people questioned: Will Russia or the US plan to use the missile to shoot the core of the Truong Chinh 5B missile, to save the planet’s citizens? On May 6, the US said it was tracking the object’s path, but had no plans to shoot it down. Cosmic garbage Australia currently holds the record as the country that contains the largest space waste in the world. In 1979, the 77-ton American SkyLab space station disintegrated in Western Australia, leaving the area around the coastal town of Esperance splashed by debris. Although no deaths or serious injuries have been reported from being hit by these cosmic debris, it is quite dangerous. Just a year before the fall of SkyLab, a Soviet remote sensing satellite, Cosmos 954, crashed into a barren area of ​​Canada’s Northwest Territory, spreading radioactive debris over several hundred square kilometers. As the Cold War was at its height, the nuclear sensitivity of the Cosmos 954 led to unfortunate delays in locating and cleaning the wreck. Who has to pay for cleaning? International law sets out a compensation regime that applies in many cases of damage on Earth, as well as when satellites collide in space. The 1972 conventions, a United Nations treaty, impose liability for the damage caused by space debris, which includes a regime of absolute liability as they fall to Earth like fragments. crumbs. In the case of Long March 5B, this would impose potential liability on China. The new treaty has only been invoked once before (for the Cosmos 954 incident) and therefore may not be considered a incentive. Of course, this legal framework only applies after the damage has occurred. In 1978, a Soviet nuclear-powered satellite crashed in northern Canada, resulting in a $ 3,000,000 fine for the tundra radioactive cleanup for Canada.

The US Space Forces, the Russian Space Agency and the Aerospace Corporation, a US-funded nonprofit research firm, predict that debris and the missile body will fall to Earth by the end this week, possibly on May 8 (US time). At the present time, the authorities have not been able to accurately determine where the missile will fall. The studies showed that after the incident, the rocket moved into the Earth’s atmosphere. According to the principle, the missile Truong Chinh 5B will orbit the Earth for a while before free fall. The Truong Chinh 5B missile, which carries the main module for China’s space station, was launched into space from April 29. Photo: Getty The orbit of the universe sent the missile through many densely populated areas from New York City and Los Angeles (USA) to Southern Europe, Beijing (China), Australia, South Africa and South America. However, it is likely that the Truong Chinh 5B missile will “land” in the Pacific or a large uninhabited territory. “The rocket’s trajectory traverses the most densely populated areas in the world,” said John Logsdon, a former member of the NASA Advisory Council and founder of the Space Institute at the University of Washington. If we cannot control the missile’s position in the atmosphere, it creates a concern about where the missile falls to Earth. ” As the rocket phase falls through Earth’s atmosphere, friction heats the surrounding air to about 3,000 degrees Fahrenheit (1,649 degrees C). The rocket will likely break at this temperature and parts of it could burn, but there are still many large debris that could survive and fall to Earth. Accordingly, experts estimate that about 5 tons of the remaining missile components, including fuel tanks, propellants, large parts of the rocket engine, metal fragments and insulation, will fall to an area of ​​the Earth. The highest possibility of scientists’ calculations is that these rocket components will fall into the ocean, where no people are inhabited. “There is still a risk of the impact of the collision, including who could hit someone with a rocket,” said Jonathan McDowell, an astronomer observing objects orbiting the Earth, CNN told CNN. But the risks of a missile hitting the residential area are very small so you don’t need to worry too much about this. ” However, according to John Logsdon, this is still an unusual situation and China needs to give an explanation of what happened. On May 7, Yonhap news agency reported that South Korea and the US discussed how to respond to the Chinese Truong Chinh 5B missile crash. It is known that Truong Chinh 5B missile was launched last week, bringing a module of China’s first permanent space station into space. However, the missile has a problem that worries space forces around the world. Members of the Korea Space Operations Center held a video conference with US-led Joint Space Operations Center officials on May 7. Photo: Yonhap The South Korean Air Force and the United States-led Joint Space Operations Center (CSpOC) hosted an online conference and shared their monitoring and analysis data. This conference was attended by both the German and Japanese armies. “We do not rule out the possibility that the missile fragment will hit the Korean peninsula. We are prepared for any situation,” said Lt. Col. Choi Seong-hwan of the Korea Space Operations Center. closely monitor the missile’s path and coordinate with CSpOC and other related agencies “. The US command said it was impossible to determine the exact landing point of the missile “until it returned to Earth”. In addition, The Guardian reported, the US has no intention of shooting down the remains of the Chinese Truong Chinh missile. Specifically, US Defense Secretary Lloyd Austin said: “We have the ability to do a lot of work but we have no plans to shoot down this missile. We anticipate the missile will land in the ocean or not. people or similar land “. A spokesperson for China’s Ministry of Foreign Affairs said on May 7 that the head of the missile will probably catch fire when it moves into Earth, so it will not pose a major threat to people around the world. White House press secretary Jen Psaki believes the US is committed to addressing the risks of space debris and wants to work with the international community “to promote leadership and responsible behavior. mission in space “. Minh Hanh (According to Business Insider, Guardian, Yonhap)

Fragments from the submarine were found during a search operation. When the submarine of the Indonesian navy carried 53 divers into the Bali Sea during a periodic training exercise, it may have been pulled into the abyss by an invisible but powerful force. Indonesian naval officials suspect an inner wave, known to have occurred in the waters around Bali, could have caused the sinking of the KRI Nanggala 402. (According to Britannian Dictionary: Side Wave) in, a kind of gravity wave that occurs on internal “surfaces” in ocean waters). The KRI Nanggala 402 sank to a depth of 838 meters, far beyond the reach of the rescuers. As the crew members’ personal belongings surfaced and the ship’s oxygen supplies dwindled, officials said there was no possibility of anyone surviving. The question remains: What happened? Many theories have been put forward but the authorities say there is evidence that an underwater wave – which could induce a vertical tensile force below sea level – occurred in the Bali Sea around the time. The submarine disappeared last Wednesday morning. The Lombok Strait between the islands of Bali and Lombok is believed to be famous for its violent underground waves on an almost bi-weekly basis. NASA, the US space regulator, says the combination of strong tidal currents, rough ocean floor and water exchange between two channels – one shallow and one deep – “tends to combine around 14. once a day for exceptionally strong tidal currents. Indonesian naval officials believe this natural phenomenon is more likely to be the explanation for the submarine disaster than other theories have been put forward in recent days. The waves inside are barely discernible on the ocean’s surface, but underwater, they can reach towering heights. The waves inside can look like ripples on the ocean’s surface, like this satellite image taken by NASA in 2013. (Wikimedia Commons: NASA) Rear Admiral Muhammad Ali, former commander of the KRI Nanggala 402, and now the Indonesian navy planning and budgeting assistant, said an internal wave was essentially “a strong electric current that can pull a submarine. vertically so it will sink faster than usual. ” “Our suspicions were directed towards natural conditions. Because an undercurrent appeared at that time in the north of Bali,” he told Indonesian media. Naval officials said images from Japan’s Himawari 8 satellite, as well as Europe’s Sentinel satellite, showed massive underwater waves coinciding with the sinking of the KRI Nanggala 402. . “It moves from the bottom to the north and there is a groove between the two waves,” said Rear Adm. Iwan Isnurwanto, Commander of the Indonesian Navy Command and General Staff School. “The wave speed is about two knots and the amount of water is about two to four million cubic liters.” Admiral Iwan explained that an inner wave could render the crew powerless in the face of nature. “Once the water swept along and pushed the ship down, what else could we do? There is no safety measure that can fix that.” Other theories about what happened to the submarine have also emerged. Some suggested that this submarine was hit by a missile from a foreign ship, or even lost power. But naval officials said the submarine was still trackable when it began diving for torpedo drills and “the lights were on” – meaning there was only a small chance of power outages. They also denied that the ship was overloaded, a theory that had 53 crew members on board but only 34 beds, instead arguing that the crew was divided into three shifts and took turns sleeping. “The submarine was originally for 33 staff members, then modernized to meet our need to have 50 staff on board,” said Admiral Iwan. Officials said the submarine was also designed to carry eight torpedoes – weighing about a ton each – but only four at the time of the disaster. Many other experts point out that metal fatigue due to cracking or corrosion and that the age of the parts is the more likely cause. KRI Nanggala 402 was built in 1978 and last overhauled in 2012, almost a decade ago.

China’s Long March (Truong Chinh) 5B missile was launched last Thursday A Chinese uncontrolled 21-ton missile is falling on Earth and could land in densely populated areas, experts warn. China’s Long March (Truong Chinh) 5B rocket launched last Thursday is expected to fall back to Earth in the next few days. Jonathan McDowell, an astronomer who tracks objects orbiting the Earth, said SpaceNews that its path was “slightly further north than New York, Madrid and Beijing, and as far south as Chile and Wellington, New Zealand”. The missile can fall anywhere within this range, including oceans and densely populated or uninhabited areas, but most missiles will burn in the atmosphere. Satellite tracking devices have detected missiles longer than 30m cruise at speeds of more than 6.4km / s. China launched the Long March 5B at 11:23 a.m. local time last Thursday to make the first phase of their upcoming space station. The module that the missile carries, dubbed ‘Thien Hoa’, will be inhabited by the three crew members after the space station’s giant structure is complete. State media reported that China aims to complete the China Space Station, known as Tiangong (Tiangong) by the end of 2022, after several other modules have been launched. When completed, the Tiangong Space Station will orbit the Earth at an altitude of 340-450km. China aims to become a space power by 2030 to keep up with rivals, including the US, Russia and the European Space Agency, and create the most advanced space station around Earth. The ISS International Space Station, currently in orbit, takes 10 years and more than 30 missions to assemble since the launch of the first module in 1998. The ISS was supported by five space agencies – NASA (USA), Roscosmos (Russia), JAXA (Japan), ESA (Europe) and CSA (Canada) – but China was initially banned from the United States. However, the unsettled return of the missile could put an end to the Chinese celebration if the vehicle lands in an inhabited area. Cosmic debris watchers have observed it moving slowly and unpredictably to Earth over the past few days and it will be one of the largest uncontrolled debris on record. The Long March 5B is about 33m long, 5.3m wide and although more than 10 tons of space debris has been left in orbit for an uncontrolled return to ground flight, Mr McDowell said “by current standards. , it’s unacceptable to let it come back uncontrollably. ” Holger Krag, head of the European Space Agency’s Office of Space Safety Programs, told SpaceNews that: ‘China is aware of the potential danger of out-of-control’. “It is always difficult to judge the volume and amount of debris left over without knowing the design of the object, but the logical rule is about 20-40% China launched the Long March 5B in May 2020 to test the vehicle in preparation to send people to the moon, but the mission also ended with an uncontrolled return trip. The Long March 5B rocket entered space on 5 May 2020 and crashed to Earth a few days later, just off the coast of West Africa. This has been confirmed by Space Control Squadron 18, a unit of the US Air Force that tracks space debris in Earth orbit. The force says what’s remarkable not only about the size of the missile but also the extent of its uncontrolled dive zone. Before crashing into waters off the west coast of Mauritania, the rocket core flew over Los Angeles and New York.

“We are lifelong friends,” said Frans Wuwung. Wuwung is a retired sailor who trained soldiers on the KRI Nanggala-402 – one of the five submarines of the Indonesian Navy. Before dawn on April 21, Sergeant Guntur Ari Prasetyo and 52 comrades took turn to get off the Nanggala-402 to start torpedo shooting exercises in the waters of the South Pacific. On the ship was also Colonel Harry Setyawan, commander of the Indonesian submarine fleet. Captain Harry’s sailor career began primarily on the Nanggala-402, after he graduated first class from the naval academy. Around 3 o’clock, the Nanggala-402 was allowed to begin a torpedo drill in the waters north of Bali Island. As the dark hull had just descended into the dark water, silence filled the sea surface. Outgoing communication received no response. The Nanggala-402 has been lost. Immediately, ships and aircraft from many countries gathered in Bali sea in hopes of searching for the Nanggala-402. In everyone’s mind, there is a constant fear that the submarine will run out of oxygen at 3 a.m. on April 24, 72 hours after contact was lost. There was evidence that the submarine was sinking On the afternoon of April 24, Chief of Staff Yudo Margono of the Indonesian Navy announced that the debris had been found just a few miles from where the ship was missing three days ago. These fragments confirmed the submarine had sunk to the bottom of the sea and cracked. The ship was declared “sunk” instead of “missing”. Several floating objects identified at sea were dropped from the Nanggala-402, including several prayer mats, special foam used to wipe condensed water, and periscope grease bottles. The bodies of the sailors have not been found, the Chief of Staff said. Meanwhile, follow Jakarta Globe Admiral Yudo Margono also said that the search team is still waiting for a miracle and will continue to search. Indonesian military observer Susaningtyas NH Kertopati said the sailors could breathe slowly to prolong the amount of time they had left with oxygen. “They are trained to do it,” she said. Fragments and objects found were displayed in front of the reporter during the April 24 afternoon press conference. Photo: Reuters. According to Mr. Yudo, the multi-beam sonar technology shows that the Nanggala-402 has sunk to a depth of 850 m, which exceeds the safe depth. The safe over-water pressure is so great that a steel-hulled submarine can be crushed. Although the Nanggala-402 fell into an undersea valley and a compartment in the vessel was not submerged, the ability to survive at such a depth with finite oxygen was very low, according to Susaningtyas Nefo Handayani Kertopati, a love analyst. newspaper and the Indonesian army. “They will fall into a state of panic. Just being locked up in our room would panic. While this is a depth of 850 m. We’re just human after all, ”said Susaningtyas. What caused the ship to crash? The reason why the ship was powered by a deep-sinking electric diesel engine is unknown. But naval experts believe that the Nanggala-402 dive is more likely to happen quickly and suddenly because the ship does not send an emergency call. Norman Polmar, the American historian of submarines, said that the Nanggala-402 was likely to sink due to internal damage. It could be that the piping was damaged causing water overflow or the battery could explode. Shortly before her disappearance, the Nanggala-402 took part in another torpedo drill but had “imperfect” results because of the missed target, according to Rear Adm. Julius Widjojono, spokesman for the Navy. Indonesia. After that, the ship was asked to rehearse again. This is the operation that the ship was about to perform at the time of its disappearance, Rear Admiral Widjojono said. Susaningtyas expert questioned whether the continued short-term deployment of the Nanggala-402 would give the ship enough maintenance time. “The ship has been forced to do this activity in the Bali Sea, very forcefully. Chief of Staff must accept responsibility, “Susaningtyas said. The Nanggala-402 was built in 1977 and completely rebuilt in South Korea in 2012. The Indonesian navy said the ship’s papers were fine. But according to an unnamed defense expert, the submarine may not have been fully maintained since May 2018. The Indonesian naval expert hypothesizes that seawater overflows the ship as it sinks, be it through pipes or torpedoes. Under perfect conditions, the crew may have a way of plugging the gap, but emergencies rarely do so. When a torrent of water flooded in, the pressure could cause the ship to sink immediately. “The ship will sink very quickly, like a rock,” said Soleman Ponta, a military analyst. The Indonesian naval ship participated in the search for the KRI Nanggala-402 submarine. Photo: Reuters. “Pray for me” The day Sergeant Guntur Ari Prasetyo, a diesel technician on the Nanggala-402, left his home in Surabaya, he once told his wife to pray for him. This is what he does every time he is mobilized. Berda Asmara, the wife of sergeant Guntur, followed her husband’s words but this time something was wrong. “Perhaps he had a hunch before he left. He looks different from usual, ”Berda said on April 24. At the same time, in the city of Sidoarjo, an hour’s drive from Sergeant Guntur’s house, Colonel Harry’s family was also praying. Waiting for the good news here is Sheeva Naufal Zidane, the 18-year-old son of Colonel Harry. “From a young age, I wanted to be in the submarine because my dad was cool,” Sheeva said. When the TV reported that the submarine debris was found, everyone in the house got close together. Sheeva applied canola oil to her mother’s legs while the woman cried. The atmosphere rang out prayers. Winny Widayanti, wife of Colonel Harry, said her husband has never lost his temper at work, even in the worst traffic jams. She said she was haunted by debris in the Bali Sea but that would not make her lose faith. “There is still hope. I won’t stop hoping. They will survive. It’s not over yet, ”said Mrs. Winny.

Older UAV models such as the Qods Mohajer-6 developed in 2017, the Yasirr and HESA Karar reconnaissance UAVs, often used in firing drills, were also on display during this year’s parade. In addition to the domestically produced UAV collection, guided missile systems such as the Damavand long-range missile and the Zolfaqar short and low-range missile systems also appeared at the parade. Iran’s goal of becoming a UAV powerhouse in the region of Iran is significantly limited due to international sanctions. Iran relies heavily on copying foreign UAVs, collecting debris from neighboring countries or from UAVs shot down in Iran. UAVs are not the only sector where the defense industry has made progress in recent decades. Iran currently produces small weapons, aircraft warships, missiles … Among these, the ballistic missile program is a concern for Israel and the US. The US believes that Iran’s ballistic missile program should be limited like its nuclear program. However, Tehran asserted that its ballistic missile program poses no threat to the United States, due to its limited range.

NW 2501 before the disaster and Captain Lind.

1. The story begins on Friday night, June 23, 1950 at La Guardia Airport, New York, USA. The weather was warm when 55 passengers, including 27 women, 22 men and 6 children, boarded a DC-4 4-turboprop aircraft, number 2501 of Northwest Airlines, from New York to Seattle (state Washington). Estimated flight time is 6 hours at 660km / h.

At 19:30, the 2501 took off. The captain of this flight is Robert C. Lind, the first co-pilot is Verne F. Wolfe, both 35 years old, and the third and last person in the crew is flight attendant Bonnie Ann Feldman, 25 years old. .

Passing Cleveland, Ohio, the 2501 continues to fly to Minneapolis, Minnesota at 3,000 meters. As she prepared to approach the city airspace of Battle Creek, Michigan at 22:41, the Chicago Air Traffic Control Center ordered Captain Lind to lower the altitude to 2,500m to avoid another plane flying in the direction. opposite.

At 11:36, the 2501 reached Lake Michigan. Upon receiving news from the Chicago Air Traffic Control Center that a storm was forming on the lake, Captain Lind asked to lower the altitude to 1,500 meters but was rejected because at such a height, the plane could will not stand the gust of wind.

At 11:51 p.m., the 2501 entered the fringes of a storm that was growing stronger. Captain Lind reported via radio that the plane would arrive in Milwaukee before 0:30 a.m. on June 24. About 10 minutes later, Lind once again asked to lower the altitude to 1,000m but did not give specific reason. The Chicago Air Traffic Control Center’s answer was still: “No way!”

That was Captain Lind’s last contact with the ground. On the other side of Lake Michigan, the Milwaukee Air Traffic Control Station, after waiting until 1 in the morning, still did not see the 2501 radio signal to New York, Minneapolis and Chicago. Immediately, the Civil Aviation Administration’s radio stations attempted to communicate with 2501 on all frequencies but to no avail. Flight 2501 is missing!

2.5:30 a.m. on Saturday, June 24, the US Civil Aviation Administration officially announced the complete loss of contact with the 2501. They also said that the amount of fuel on the plane was completely exhausted by that time so it could no longer fly, and issued an emergency search order to the navy, the coast guard and the state police from Illinois to Michigan, Wisconsin and Indiana. Thirteen hours later, at 6:30 p.m. on Saturday, the Coast Guard ship commanded by Captain Woodbine saw an oil slick and some debris allegedly from a 2501, floating on the surface of Lake Michigan. At 5:30 a.m. on Sunday, June 25, the sonar machine of the US Navy ship led by Captain Daniel Joy was near the oil spill, and found some objects that reflected very strong sonar waves. However, scuba diving conducted by a naval clone showed that it was not the wreck of the plane, but that of a shipwreck.

Also on Sunday, the Coast Guard fleet consisting of four ships led by Woodbine, Mackinaw, Hollyhock and Frederick Lee recovered many floating debris, including fuel tank fragments, seat pads, clothing pieces. , blankets, luggage and some parts of the corpse but not a single piece of debris was large enough to confirm it fell from the 2501. Investigators speculate that the 2501 exploded in the sky because of their followers. The aircraft twisted when it fell into a gust of wind, causing a spark to burn the fuel tank. Prosecutor Berrien Louis Kerlikowski and US Coast Guard officials said: “It must be a terrible explosion to tear the passenger body in an unimaginable way.” However, residents of Lake Michigan said that on the night of June 23 and 24, they heard no explosions except for the testimony of a retired naval lieutenant, RT Helm.

According to Mr. Helm, he saw an airplane passing through his house at 12:20 a.m. and then a flash of light accompanied by a terrifying explosion. However, compared to Captain Lind’s last contact at 0:01 when he requested to lower the altitude to 1,000 meters and the speed of the plane, by 0: 20 minutes, the 2501 had passed out of Lake Michigan and is in Milwaukee airspace. The divers’ search during the following days was also fruitless, partly because the bottom of Lake Michogan was muddy, and the visibility was limited. In addition, many of the large objects detected by the sonar are not those of the 2501.

In July, a local fisherman, Wallace Chambers, pulled the net onto a small, distorted piece of metal. Analysis of the US Civil Aviation Commission led to suspicion that this piece of metal belonged to the 2501, but during World War II, the US military used more than 3,000 DC-4s and by the end of the war, nearly 600 the aircraft became a civil aircraft with identical construction, so the wreckage recovered by Wallace Chambers said nothing.

Six months after the disappearance of Flight 2501, after thoroughly analyzing all the collected specimens, the US Civil Aviation Commission officially concluded this was a “catastrophe without any cause”.

From there, over time, the incident sank into oblivion until science invented advanced detectors, which could restore the model of the seabed, river, lake, with all the details in on the bottom the search for the 2501 begins to restart.

DRAW HIGH