The Sun’s atmosphere can be as hot as 1 million degrees Celsius. This increase in temperature, despite the increased distance from the Sun’s primary energy source, has been observed in most stars. In 1942, Swedish scientist Hannes Alfvén hypothesized that the magnetizing waves of plasma could carry large amounts of energy along the Sun’s magnetic field from the interior to the corona, passing through the photosphere. before exploding with heat in the upper atmosphere of the Sun. This hypothesis has been tentatively accepted, but there is no evidence that these waves exist. Recent research by scientists finally confirms Alfvén’s nearly 80-year-old hypothesis and brings us one step closer to harnessing this high-energy phenomenon on Earth. The sun is made up almost entirely of plasma Halo problems have been around since the late 1930s, when the Swedish spectrographer Bengt Edlén and the German astrophysicist Walter Grotrian first observed phenomena in the sun’s corona that could only be observed. present if its temperature is a few million degrees Celsius. This represents temperatures up to 1,000 times hotter than the photosphere below it, which is the surface of the Sun that we can see from Earth. Estimating the heat of the photosphere has always been relatively simple: we simply measure the light reaching us from the Sun and compare it with spectral models that predict the temperature of the light source. Through decades of research, the temperature of the photosphere has always been estimated to be around 6,000°C. Edlén and Grotrian’s discovery that the Sun’s corona is much hotter than the photosphere – albeit farther from the core. of the Sun, its supreme source of energy – has given the scientific community a headache. Scientists looked at the properties of the Sun to explain this difference. The sun is made up almost entirely of plasma, which is a highly ionized gas that carries an electrical charge. The movement of this plasma in the convection zone – the upper part of the sun – generates enormous electric currents and strong magnetic fields. These magnetic fields are then pulled up from the Sun’s interior by convection, and enter its visible surface in the form of sunspots, which are clusters of magnetic fields that can form a variety of magnetic structures. differences in the Sun’s atmosphere. Alfvén reasoned that within the Sun’s magnetized plasma, any large movement of charged particles would perturb the magnetic field, creating waves that could carry enormous amounts of energy across vast distances. (from the surface of the Sun to its atmosphere). Heat travels along what is known as a flux tube from the sun before bursting into the corona, creating its high temperature. Measure the temperature of the Sun with an imaging spectrometer These magnetic plasma waves are now known as Alfvén waves, and the explanation for the heating of the circle led to Alfvén being awarded the 1970 Nobel Prize in Physics. The Interferometric Bidimetric Urban Spectrometer (IBIS) for imaging spectroscopy, installed at the Dunn Solar Telescope in the US state of New Mexico. This instrument has allowed researchers to make more detailed observations and measurements of the Sun. Combined with good observational conditions, advanced computer simulations, and the efforts of an international team of scientists from seven research institutions, they used IBIS to confirm the existence of waves for the first time. Alfvén in flux tubes from the sun. The researchers also expect more solar discoveries soon, thanks to new, groundbreaking missions and tools. The European Space Agency’s Solar Orbiter satellite is currently in orbit around the Sun, providing images and making measurements of the star’s unexplored polar regions. The launch of the new high-performance Solar telescope is also expected to enhance our observation of the Sun from Earth.

Mars hides the secret of life, always urging people to explore. Photo: NASA Today’s Earthlings are perhaps the most curious generation about the possibility of alien life on Mars, and are always wondering how humans might one day colonize there. From theories about Martian canals to alien radio messages, over the past three centuries, mankind has been constantly thinking about life on Mars. approach to his Martian “brothers”. Mars often appears in ancient texts as a “fire star,” or represents the god of War. In the 17th century, new early telescopes allowed scientists to get a glimpse of the Red Planet. Skilled “channel engineers”? Scientists need more powerful telescopes to be able to see up close, thereby trying to better clarify the hypothesis of life on Mars. In 1877, Italian astronomer Giovanni Schiaparelli noticed crisscrossing lines covering the “Red Planet”. He called these lines “canali”, which means “canal”. Schiaparelli himself does not believe that this is an alien product, but some others are sure of it. Giovanni Schiaparelli’s map of the “canal” system on Mars. Image: Wikimedia Commons As information spread, the word “canali” was translated into English as “canal”, meaning “canal”. And if there were canals, wouldn’t that suggest that aliens would have to dig them? With that argument, many people believe that the interlaced lines on the surface of Mars are a beautiful system of waterways spreading across the planet.. Such a system not only shows that Martians exist, but that they are also amazing engineers. On Earth, it took man 10 years to complete the Suez Canal in 1869. The achievements of the Martians therefore seem to be far superior to those achieved by man. Astronomer Percival Lowell certainly thought so. In 1894, this American scientist-businessman began to expand the concept of a “canal” on Mars. Lowell used his family’s large textile fortune to open the Lowell Observatory in Flagstaff, Arizona, USA. Professor Percival Lowell works with a telescope invested by his family. Image: Wikimedia Commons Percival Lowell mapped the “canals” on Mars with the help of the 24-inch Alvan Clark & ​​Sons refracting telescope he set up at the Lowell Observatory. He made meticulous maps of what was observed on the surface of Mars, wrote many books and regularly gave lectures on his shocking theory that Martians existed and that they were trying to irrigate the planet. their dying elf. Percival Lowell offers logical explanations to answer the question of how and why life exists on Mars. He used the example of life on Earth to illustrate his arguments: “As long as it was proved with certainty that no life could exist on the seabed, dredgers deep sea beds were invented, and before long, they ‘frustrated’ us. Behold, they see full of life. Fish, crustaceans, molluscs and echinoderms. In short, the life of all common floating fish, from protozoa to marine ‘monsters’ – have been found living in the depths of the seabed. What is impossible, turns out to be possible.” But mapping Mars is one thing, and soon scientists are looking for ways to make contact with any life that might exist on the planet. “Message” from the Red Planet In 1899, Lowell’s theory of life on Mars received a “kick” from a prominent scientist: Nikola Tesla. Tesla, then a successful electrical engineer, claimed that he had detected an “inexplicable, faint” signal originating from Mars. Portrait of Nikola Tesla circa 1890. Photo: Wikimedia Commons While conducting experiments with his magnifier at high latitudes atop Pike Peak, Colorado Springs, Tesla claimed that he received “a message from another world, unknown and far away. “. What does that message say? According to Nikola Tesla, it is simply: “ONE – TWO – THREE”. A few years later, on a February 1901 day, in an interview with Collier’s Weekly, inventor Tesla announced that he could communicate with Martians by sending wireless messages to any point. on the “Red Planet”. This is a strange statement, because the successful transmission of radio messages on Earth has only become a reality since December of that year. Tesla doesn’t know what the aliens might look like, but he believes they have adapted to living conditions on Mars. Like Lowell, he suggested that “it is possible that in a frozen planet, such as the presumed conditions on our Moon, intelligent beings could still reside, within it, if not within it. on the surface”. To many people, when humans can receive messages from Mars, we can also send messages, that seems reasonable. In 1909, there were attempts to find a contact with life on Mars. Harvard professor William Henry Pickering proposed sending planetary light signals through a series of reflections produced by a network of 50 giant mirrors. The flashes would continue to flash for several years, allowing the Martians time to develop the necessary means to respond. Professor Pickering’s giant mirror illustration for sending signals to Mars. Photo: Library of Congress “In the hope of receiving such signals again, we must of course assume that Martians, if they exist, have telescopes, eyes, etc., just like humans have on this Earth.” Mr. Pickering said. But the Harvard professor’s plan cost $10 million, and no one wanted to fund it.

The human brain is a complex multi-scale structure in which molecules, cells and neurons coexist. It can be modeled as a multi-layered network, called a brain connection pool. Neighboring neurons are connected to form local structures, and different local structures form connections to perform cognitive functions. The human brain is estimated to have about 86 billion neurons. To decipher where consciousness comes from, the researchers used a Swiss supercomputer and used algebraic topology to build a detailed model of the cerebral cortex. Through testing the response of the mathematical model to virtual stimuli and examining the reality of the mouse brain, the researchers were able to determine the details of the neural network on a single neuron. and the entire brain structure. At the same time it was discovered that there are different types of high-powered activity in the brain consisting of a three-dimensional geometric structure – tightly connected clusters of neurons and existing regions. space (cavity) between them. These empty regions appear to be important for brain function. When the researchers applied the stimuli to their virtual brain tissue, they found that the neurons responded to the stimulus in a highly organized manner. This means that as we think about problems, clusters of neurons will gradually coalesce into higher-dimensional structures, forming holes or voids of height. The more neurons in the clusters, the higher the size of the gap, and the highest limit that can be achieved is 11 dimensions. The whole process always follows the order from low to high, the structure will become more and more complicated and eventually collapse. It’s like building a castle on the beach, the castle gets taller and taller and eventually it will collapse on its own. This is exactly like the large-scale filamentous structure of the universe, where galaxies and galaxy clusters form a giant filamentous structure with a giant hole in the middle. In a recent study, it was discovered that our Milky Way galaxy lies within a giant hole one billion light-years across. This study provides new discoveries about how the brain processes information. Scientists speculate that high-dimensional gaps in neuronal structures may be where the brain stores memories, but it’s unclear how these blocks and gaps are formed. How it works, so further studies are needed to determine the connection between the multidimensional structure of neurons and complex consciousness. The interaction between the human brain and the universe is completely different, but there have been many observations and conjectures about the similarity between the neural network and the cosmic network under observation from a microscope and telescope. The researchers quantitatively analyzed the similarity between the two factors based on optical microscopy observations of brain tissue and high-resolution cosmic-matter network imaging, with the help of the method. network analysis. First, there is a huge difference in scale between the brain network and the cosmic network, which is similar only on a specific scale. Brain neural networks are now thought to consist of tens of billions of neurons. The number of galaxies currently observed in the cosmic lattice exceeds 100 billion. In addition, in the neural network of the brain and the network of the universe, only a small amount of matter constitutes the network. There are a large number of holes between giant galaxies, and about 70% of the mass is made up of dark matter. In the human brain too, which is a biological organ, the most important component is water, in the human brain, nerve cells are only 25% and about 75% water. Up to this point, “having water in your head” has a certain scientific basis. In the universe, dense clusters of galaxies predominate, while in the human brain, specifically in neural networks, nerve fibers create uniform small patterns. However, when the researchers increased the magnification of the microscope, they were able to see some similarities to the cosmic web in brain slices.

In the region, the South and the Central Highlands provinces, many places are having rain and unfavorable weather. This will directly affect the observation of the lunar eclipse. In the sky of Hanoi, according to the forecast about 6:30 p.m The Moon will begin to appear on the horizon. At this time, it is possible that the Moon has appeared but is located right on the horizon and is being obscured by buildings. In Hanoi, viewers can observe the Lunar Eclipse in the direction between East and Southeast. However, right now (18:20) there are some pretty big clouds near the horizon. Photo at 6:20 pm in Hanoi Photos at 6:30 p.m. The sun was slowly disappearing. Theoretically, the Moon is now close to the horizon to the East, Southeast. From 6:45 pm to 7:00 pm, when the moon is high enough, this is convenient for viewers to observe. According to reflection, in Ninh Thuan, the Moon has begun to rise and viewers can observe. In Da Nang, the weather is nice and viewers can observe well. The Moon now has just finished its total phase, the Moon is gradually moving out of the shadow. Pictures at 6:30 pm In Ha Tinh: The coastal area can be observed well. Viewers can find the Moon in the East, Southeast. Some mountainous areas of Ha Tinh may have rain, making it difficult to observe. In Taiwan, a place very close to Vietnam, the weather conditions are favorable, so observing the lunar eclipse is quite easy. Below is an image of a lunar eclipse recorded in Japan. At this time, the Moon has passed its total phase and is gradually leaving the dark side of the Earth. Pictures in Japan Quang Ngai: The lunar eclipse has begun to appear. The image was recorded by a universal observatory telescope. The Moon in Quang Ngai The moon appeared dimly in the sky of Hanoi. The moon appeared dimly in the sky of Hanoi. Nha Trang and Phu Yen: The moon is rising and people can observe a partial lunar eclipse. Binh Dinh, Quang Nam: The weather is good and many places can observe the lunar eclipse. 19h00: The lunar eclipse was visible in Hanoi. The image was recorded under a telescope. Observation will be more difficult but still doable with the naked eye. Lunar eclipse can be observed in Hanoi When the Sun, Earth, and Moon are aligned or approximately aligned, part or all of the Moon will be obscured from the Sun by the Earth, causing a lunar eclipse. Lunar eclipse image recorded at 19:00 in Quang Ngai. 40% of the Moon’s area has entered the Earth’s semi-dark region. Lunar eclipse image recorded at 19:00 in Quang Ngai. The image of the lunar eclipse in Hanoi was recorded under a simple telescope at 19:15. It can be seen that 50% of the Moon’s area has left the Earth’s shadow. Photo taken during the Lunar Eclipse in Hanoi at 19:15 on May 26. At this time in some places in Hanoi it is windy. This will have a certain effect on those observing with a telescope. In Ho Chi Minh City at this time it is cloudy, viewers have almost no chance to observe the lunar eclipse. In Hanoi, 60% of the Moon has left the Earth’s shadow. According to forecast, the lunar eclipse will end at 19:52′. Thus, there is only about 30 minutes left for viewers to observe this phenomenon. 19:30: The lunar eclipse was recorded in Hanoi at 19:30. At this time, 70% of the area is bright again. 70% of the Moon was bright again at 19:30, observed from Hanoi. 19:45 : Image of lunar eclipse recorded in Hanoi. It can be seen that the Moon has almost completely come out of the shadow of the Earth. The Moon has almost completely come out of the Earth’s shadow. 19:55 : In Hanoi, the partial lunar eclipse has ended. The Moon is now moving into the Earth’s semi-dark region. In about 1 hour, from 20h00 to 20h49, there will be a penumbral lunar eclipse. At this point, the Moon will be slightly darker and dimmer than usual. After 9pm tonight (May 26), the lunar eclipse will end completely. At that time, the entire Moon will be directly illuminated by the Sun again. Live: Total lunar eclipse and super moon Vietnam on May 26 26 Today’s lunar eclipse coincides with the time when the Moon is at its closest position to the Earth. Therefore, observers will be able to witness the dual phenomenon of lunar eclipse and supermoon. Simulation of a lunar eclipse. This lunar eclipse in Vietnam will be different when accompanied by a super blood moon phenomenon. In the legends of some cultures, lunar eclipses are often associated with some bad luck. In ancient times, it was believed that a lunar eclipse was a sign of great change and foreshadowed bad luck to come. In modern times, many people still hold bad views about this phenomenon. Readers can visit here for a correct and accurate understanding of the lunar eclipse. This year, Vietnam is located in a geographical area that can observe the lunar eclipse well. However, depending on the region, the ability to observe as well as the time to observe the lunar eclipse varies between provinces. According to the National Center for Hydro-Meteorological Forecasting, some areas this afternoon will have very favorable weather to observe the lunar eclipse. Readers can visit here to know exactly where they live, whether this phenomenon can be observed. Landmarks of the afternoon lunar eclipse, May 26 (Vietnam time): – 15:47: A penumbral eclipse begins, the Moon enters the Earth’s penumbra and begins to decrease in brightness. – 4:44 pm: A partial lunar eclipse begins, the Moon enters the Earth’s shadow and gradually becomes partially obscured. – 18h18: The lunar eclipse is at its maximum, the Moon is located near the center of the shadow. – 6:25pm: The total lunar eclipse ended, the Moon began to emerge from the Earth’s shadow. – 6:35 pm: when the Moon rises from the horizon. – 19:52: The partial lunar eclipse ends, the Moon enters the Earth’s semi-dark region. – 20:49: The penumbral eclipse ends, the Moon comes out of the Earth’s penumbra.

GS. Trinh Xuan Thuan Born in 1948 in Hanoi, at the age of 6, he moved with his family to Saigon to live. As a child, he attended Jean-Jacques Rousseau High School (now Le Quy Don School, Saigon). GS. Trinh Xuan Thuan Graduating from high school in 1966, Prof. Trinh Xuan Thuan went to Switzerland to study engineering. He then decided to study astrophysics at the California Institute of Technology, then at Princeton University, New Jersey, USA. For the first time in his life, at the observatory on top of Mount Palomar, California, young Trinh Xuan Thuan observed the magic of the galaxy, moon and light from billions of stars through the telescope. The largest telescope in the world at that time with a diameter of 5.1 m. His life has been associated with cosmic astronomy since then. After completing his doctoral thesis at Princeton, GS. Trinh Xuan Thuan teaches at the University of Virginia since 1976, and has become a world-renowned expert on extragalactic astronomy. In which, the most prominent event is the GS. Trinh Xuan Thuan is the youngest known co-discoverer of the galaxy in the universe today, thanks to the study of observations made by the Hubble space telescope. That is galaxy I Zwicky 18. Called I Zwicky 18, this galaxy appeared just 500 million years ago. This discovery is shocking because the word I Zwicky 18 allows people to understand the first small galaxies in the early universe. Writing about the universe in a special way In addition to research, Prof. Trinh Xuan Thuan writes a book. From the research results, extremely attractive and interesting findings of astronomy, Prof. Trinh Xuan Thuan wishes to share with everyone about the beauty, harmony of the universe and the creation of nature. GS. Trinh Xuan Thuan is highly appreciated for his ability to popularize science. He began to write his first book ‘Mysterious Melodies – La Mélodie secrète, published in 1988′. Currently, there are about 20 books of GS. Trinh Xuan Thuan was translated and published in Vietnam as Origin, nostalgia for the early days; The Paths of Light, The Fullness of Nothingness, One Night… GS. Trinh Xuan Thuan writes three times more popular science books than specialized research books. He confided: “Because I want to meet more readers. If I write a book on a complex subject, only a few hundred people can understand it. I want the knowledge of science and astrophysics to spread in many readers. So I write books for the masses. If I’m lucky, my books will be read by hundreds or thousands of people.” When writing the book, Prof. Trinh Xuan Thuan wants to explain to the general public about the stars, the universe, about what astronomers have discovered; phenomena of the sun dying into a dwarf star, or stars ten times more massive than the sun, the sun becoming a black hole… In particular, when writing books, he did not use science but wrote about the universe in a literary way. GS. Trinh Xuan Thuan explains: The voice of the universe is math. Scientists all use math equations to understand the universe. But when I write the book, I do not use it, but use images in everyday life, to let the public understand the ideas that scientists find in the universe. Therefore, although writing about distant planets, cold galaxies, mysterious black holes… GS. Trinh Xuan Thuan always tries to use a simple but clear language. He refrains from using overly technical terms. For difficult concepts, he often refers to images in everyday life as an example. For example, in the latest book titled “One Night” (Pham Van Thieu, translated by Pham Viet Hung, Youth Publishing House, 2020), Prof. Trinh Xuan Thuan brings readers into a vast world, explores the night sky with easy-to-understand explanations. As a lover of poetry, he also quoted many verses and poems of famous poets. For example, when writing about the Moon, Professor Trinh Xuan Thuan quotes John Keats’ “Song of the Nightingale”: “The night is gentle/ And maybe Hang Nga is on the throne/ Among the stars of fairies/ But in Here, nowhere is it clear / Except for the breezes / On the dark and mossy leaves of the winding roads. He even quoted W. Shakespeare’s “Romeo and Juliette”: “Come, night, come here/ Romeo me, come back to me!/ I’m the sun in the dark/ Because I’ll lie under the night darkness of the night…”. In the spring of 2007, the famous work “Paths of Light” (Les Voies de la lumière) was awarded the Moron Prize by the French Academy. Two years later, Prof. Trinh Xuan Thuan also became the first Vietnamese in history to be awarded the prestigious Kalinga Prize by the United Nations Educational, Scientific and Cultural Organization (UNESCO). Soon after, the Institut de France awarded the Prix mondial Cino del Duca, recognizing the persuasive transmissions of complex knowledge of arid space science, yet blended under a contemplative, rich gaze. literature in his outstanding works. GS review. Trinh Xuan Thuan, Mr. François Delattre, French Ambassador to the US, respectfully called the Vietnamese-born astronomer a “world asset” when he devoted his life to the goal of “popularizing science”. Invite readers to watch the video:Fish at the fried statue. Source: VTV24.

Use a telescope to track the stars. Illustration: IT. Stay away from lights when observing the sky When using a telescope to observe the sky, determine for yourself reasonable objects and choose the right time and place to observe them. Strong light is the enemy of the astronomical observer. Therefore, stay away from city lights. If you are in the city, you can go to the quiet suburbs if possible. Otherwise, you should choose high positions and have a wide viewing angle to limit the effects of light pollution. Which objects are best for you to observe with amateur telescopes? Many young people after completing the telescope with their own hands feel disappointed. Because you have too much hope for a dream glasses without taking into account the reality factor. Remember, even the glasses that cost thousands of dollars that you order from the world’s leading manufacturers cannot allow you to see the colors shown in the photos taken on Google. Also, pay attention only to the brightest and most observable subjects. Which objects are the brightest? Except for the Moon, readers with basic knowledge of astronomy will think of Venus, Jupiter, Mars or Sirius – the brightest star after the planets in the system. However, Venus is not a good object to observe even though it is very bright. All you see is a yellow halo due to its thick and toxic atmosphere. Stars like Sirius, Canopus, although many times brighter than that, they are just distant balloons. It is not a reasonable target for observation through amateur optical telescopes. The best observed objects are the Moon first, followed by Jupiter, Saturn, Mars and a few galaxies, remarkable nebula. Don’t Observe When The Moon Is Full To observe the Moon, adjust the position of the eyepiece accordingly and aim at the vicinity of the semi-dark area during the nights between the 6th, 7th and 11th of the 12th lunar month. The full moon is a bad subject because it is so bright that it will obscure the craters and valleys you can see. You can solve this with a thin layer of glass called a moon filter, which will reduce the light of the Moon as it reaches your face. With industrial-grade telescopes, most have this. As for the homemade glasses, you can also design it yourself using a glass or a piece of blue plastic but still clear enough to see through it. Even so, the Moon should not be observed on full moon nights. Because in addition to it covering itself, it also obscures other attractive objects of observation, except, of course, on full moon days when the lunar eclipse occurs. You should have a map of the visible part of the Moon to compare when observing. These maps are now easy to find on the Internet and simply print out with any black and white printer. To observe the planets, it is best to choose the right time for good results. Planets have a different period than Earth, so they do not have a stable position like the distant star background. The easiest way is to use computer software to check the positions of the planets, or you can use free software downloaded at www.stellarium.org. Do not forget to set the exact location of the user and when you want to observe. It is advisable to choose days that are not full moons because the planets are in relatively high positions. Jupiter is the most observable object through amateur telescopes. Push your eyepiece a little deeper than when looking at the Moon and try to orient the lens because it will disappear instantly if you don’t keep your gaze exactly. Although it is not possible to see the colors as clearly as in the photos online that have been taken with exposure techniques, and through equipment thousands of times more modern than the amateur glasses you own, the colors Basic with brown lines, dark yellow is what you will see, and moreover the 4 Galilean satellites of this planet. Saturn is like Jupiter, just determine the right direction and fix the glass and you will easily observe it. The most interesting thing to look at this planet is its ring. However, it won’t be as colorful as you’re used to seeing in the photos, both the planet and the ring appear pale yellow. Next in the Solar System is Mars. But observing this planet is not very interesting because all you see is a faint red and maybe some black patches with faint ice caps at the poles if the telescope is relatively good. Anyway, this is the only planet in the Solar System that we can see some of its surface through amateur telescopes. One type of object that is very interesting to observe with amateur telescopes or, more neatly, tubes are bright galaxies and nebulae. Remember to push your eyepiece even further towards the objective so that you can observe the celestial bodies at infinity. The first notable is the Andromeda Galaxy (M31), a spiral galaxy. At a distance of nearly 3 million light-years, it emits light strong enough to be seen with the naked eye. Even with a small binocular you can see a band of light that seems to be a combination of countless small bright dots when directed towards it. What you see is billions and billions of suns like our own. Next is the Pleiades star cluster (M45), also known as the stellar group. It is also easy to recognize with the naked eye, it is a small group of 7 brightest stars located right in the constellation Taurus. Through binoculars or small telescopes, it can be clearly seen that it is a blue star cluster with many stars, including 7 brightest stars visible to the naked eye, so it is called the Seven Stars. This is an open cluster in the milky Way located 400 light-years from Earth. Another member you should look out for is the Orion Nebula (M42), an emission nebula with the same galaxy about 1,350 light-years from Earth. The Orion Nebula, although visible to the naked eye, is quite faint.

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).

Illustration. That could improve your chances of discovering organisms in distant worlds. How to find exoplanets Since 1999, a process of detecting exoplanets called the transit method has found thousands of other worlds by measuring the brightness of the stars that these planets orbit around. No one knows if these planets have any life, but if scientists observe the Earth using this method, they will probably detect signs of life. Once those signs are identified from Earth observations, experts can then find similar clues in the exoplanets. Scientists have recently described this approach as a mission called the Earth Transit Observer (ETO). This year, they presented this at the 52nd Moon and Planetary Science Conference. Most of the exoplanets we know of are found by transit, according to the US NASA Space Agency. Modern telescopes such as the Kepler Space Telescope and the Exoplanet Survey Satellite (TESS) can detect exoplanets when the path of a planet dims a star’s light overnight. slice. This is true even for stars thousands of light-years away. Scientists can estimate the magnitude of a planet based on the amount of light it is blocking and calculate the size of its orbit. The size and temperature of a host star as well as the distance between the planet and the star will provide additional clues as to whether exoplanets have life or not. The measure of transit can also hint at an exoplanet’s atmosphere. During a transit, a star’s light is filtered through atmospheric molecules. This could help researchers identify elements like oxygen and methane there. Such signs are often so small that astronomers need more transit observations to confirm the existence of these elements – according to a statement by the scientists. However, other factors on exoplanets and stars can affect the reading of molecules in the atmosphere. For example, planets change with the seasons, weather patterns and ocean currents. In addition, the activity of the Sun, such as the rise and fall of the solar wind, and the formation of solar storms also change. Any of these conditions can shape the behavior of the atmosphere, thus potentially affecting the proportion of molecules and elements in their atmosphere. Illustration. Finding “New Earth” Lead author Laura Mayorga of the planet-finding mission article in the Journal of Planetary Science says that, to understand those variables, “you need to know your stars as well as predict your planets. what do you look like ”. This can be a challenge when both the stars and the exoplanets are alien. “This is a very difficult problem,” says exoplanet astronomer at Johns Hopkins University’s Applied Physics Laboratory in Laurel Maryland (USA). Luckily, scientists already have all of those answers for a pair of inhabited planets and stars. That is our Earth and the Sun. For the ETO mission, a small satellite with a device capable of imaging near-violet to near-infrared light spectrum will observe the Earth as it passes in front of the Sun. The spectrophotometer will check for water and carbon dioxide markers as well as biological markers – oxygen and methane, ozone and methane. Besides, it is to point out the favorable conditions for life (of course, also to see if the signs are unique to Earth or not). The transit technique used in such an investigation would be similar to the technique used by the James Webb Space Telescope (JWST) to study some of the thousands of exoplanets, scientists say. know moving through their host stars ”. Since we all know the climate change on Earth and the patterns of the Sun’s activity, scientists can observe how they affect the reading of atmospheric molecules and then apply them to our observations. close to the “new Earth”. “The Solar System is the only place where we know all the answers. We can test our technique, point out limitations and make a connection between the results, ”said Mayorga in the statement -“ Then we can connect that with Unanswered observations from exoplanets ”. Scientists plan to submit the ETO proposal to NASA’s Astrophysical Pioneer Program in the fall of 2021.

People in the Eastern Hemisphere can observe Apophis without binoculars by 2029. Exclude from the risk Asteroid 99942 Apophis was discovered in 2004. Apophis was quickly identified as one of the most dangerous asteroids that can impact Earth. However, that impact rating changed as astronomers tracked Apophis and its orbit. Now, results from a new radar observation campaign combined with accurate orbital analysis have helped astronomers conclude that Apophis poses no risk of impacting our planet in the least. at most a century. About 340 meters across, Apophis is quickly known to be an asteroid that could pose a serious threat to Earth. At that time, astronomers predicted that this asteroid would come close to Earth by 2029. Thanks to additional observations of a near-Earth object (NEO), the risk of impact by 2029 has since been eliminated. The scientists then also ruled out the potential impact risk posed by another close approach in 2036. However, a small chance of impact by 2068 is thought to still exist. When Apophis moved away from Earth on March 5, astronomers had an opportunity to use the radar observations vigorously. As a result, it helps refine estimates of the orbits of asteroids around the Sun with extremely high accuracy. Thus, scientists can confidently eliminate all risks of collision by 2068 and much later. “An impact in 2068 is no longer in NASA,” said Davide Farnocchia of the Center for Near-Earth Objects Research (CNEOS) managed by NASA’s Jet Propulsion Laboratory (JPL) in Southern California (USA). possibilities could happen again. Our calculations do not show any risk of impact for at least the next 100 years ”. Mr. Farnocchia mentioned the Sentry Risk Impact Table. Maintained by CNEOS, this table holds information about some asteroids whose orbits bring them so close to Earth that the impact cannot be ruled out. With recent findings, the Risk Impact Table no longer includes Apophis. Optical telescopes and ground radars help characterize every orbit of objects near Earth. As a result, scientists can improve long-term risk assessment. CNEOS calculated a high-precision orbit to support NASA’s Planetary Defense Coordination Office. Apophis is no longer a threat to Earth. Opportunity to “follow” Apophis Apophis is the size of three soccer fields, weighing 27 million tons. If it collided with Earth, it would cause an explosion that was equivalent to 880 million tons of TNT. This power could destroy a country of mid-size. Its impact with the Earth will be 65,000 times stronger than the atomic bomb that once fell on the city of Hiroshima, Japan. The impact hole it left could be 518m deep. To achieve new Apophis calculations, astronomers used 70 m radio antennas at the Deep Space Network’s Goldstone Deep Space Communications Complex near Barstow, California. As a result, they were able to accurately track Apophis’ movements. “Apophis used to be close to Earth, but it still has nearly 10.6 million miles (17 million km) to go. Despite this, we were able to obtain extremely accurate information about the distance of Apophis with an accuracy of about 150 m. This campaign helps us eliminate the impact of risk and a great scientific opportunity, ”said JPL scientist Marina Brozovic – who led the radar campaign. Goldstone also partnered with the 100-meter-long Green Bank Telescope in West Virginia to allow Apophis to be photographed. Goldstone transmits while Green Bank receives – experiment that doubles the strength of the received signal. Although the Apophis radar image appears in pixels, the image has a resolution of 38.75 m per pixel. This is a remarkable resolution, considering whether the asteroid is 17 million kilometers away, or about 44 times the Earth-Moon distance. As the radar team analyzes more data, they also hope to learn more about the asteroid’s shape. Previous radar observations have shown that Apophis has a “double layer”, or peanut-like appearance. This is a relatively common shape among asteroids near Earth that are greater than 660 feet (200 m) in diameter. Astronomers are also working to better understand Apophis’ rotation speed and the asteroid axis orbit. On April 13, 2029, the Apophis asteroids will cross less than 20 thousand miles (32 thousand kilometers) from the surface to closer to Earth than the distance of geotechnical asynchronous satellites. On that close 2029 approach, terrestrial observers in the Eastern hemisphere could witness Apophis without the aid of a telescope or binoculars. This is also an unprecedented opportunity for astronomers to get a close-up look at a monument in the Solar System. In particular, now, Apophis is just a scientific curiosity, instead of a danger to our planet. “When I first started learning about asteroids after college, Apophis was a malformed child among dangerous asteroids,” said Mr. Farnocchia. There is a certain sense of satisfaction to see it removed from the list of risks. We are looking forward to knowledge that we can explore in its up-close by 2029 ”.

In a statement to the local press, Mr. Morrison said the project to build a new telescope will help astronomers discover more about the universe, and create more than 350 jobs during the 10-year construction period. and 230 permanent jobs within 50 years of project operation in Australia. In addition, the construction and operation of the SKA radio telescope in “Kangaroo Country” will contribute to improving the production capacity of domestic enterprises in the field of highly skilled technology and allowing the creation of major scientific breakthroughs. A budget commitment of $ 387 million including AUD 64.4 million builds a dedicated supercomputer center to process the unprecedented amount of data collected from the SKA telescope.