Is the "Doomsday" prophecy true? An asteroid is heading towards us, exploding in Earth's atmosphere -

A very small asteroid flew towards us and exploded into ashes in the atmosphere of the Earth's North Pole. It did not hit the ground, so there is no need to worry.

In addition to the eight major planets, dwarf planets, satellites and other relatively large celestial bodies in the solar system, there are also a large number of smaller celestial bodies, such as asteroids, comets, meteorites, etc., which are similar to the eight major planets, Compared with large celestial bodies such as satellites, the flight trajectories of small celestial bodies such as asteroids and comets are sometimes difficult to predict because their sizes are relatively small and they are easily affected by the gravity of major celestial bodies. At the beginning of the birth of the solar system, the space environment of the solar system was still relatively chaotic. Various small celestial bodies were floating everywhere. Some small celestial bodies may be thrown to the outer solar system by the gravity of other planets and other large celestial bodies. Some small celestial bodies may be directly affected by these objects. Captured by the gravity of large celestial bodies, they become satellites of these celestial bodies, or fall directly onto the surface of large celestial bodies. When these small celestial bodies fall onto the surface of the planet at extremely fast speeds, they usually leave large and small impact craters on the surface of the planet, causing serious damage to the ground. The surface of the moon is dotted with various impact craters, formed by the impact of asteroids, meteorites and other celestial bodies on the moon.

The current mainstream view is that the extinction of the dinosaurs, which once "ruled" the earth for more than 100 million years, was caused by an asteroid with a diameter of 10 kilometers colliding with the earth at a distance, directly removing some species from the earth. Erased. During the impact, dust was also raised on the surface of the earth that blocked the sun, blocking the sun. The temperature of the earth dropped, and plants were unable to effectively carry out photosynthesis due to lack of light. In the end, many organisms were here Disappeared on impact. Because the consequences of these asteroids hitting the Earth are very serious, scientists have been studying how to avoid the risk of asteroids hitting the Earth over the years. So far, scientists have discovered many asteroids and tracked their flight trajectories. They can basically confirm the probability of these asteroids hitting the earth. Since the solar system has been formed for billions of years, many asteroids have been attracted by gaseous planets such as Jupiter. Few asteroids will collide with the Earth, but there are exceptions.

On March 11, 2022, astronomer Krisztián Sárneczky of the Konkoly Observatory in Budapest, Hungary discovered an asteroid and named it "2022 EB5". Subsequently, other scientists also investigated it from different directions. It was tracked, its orbit calculated, and its intersection with our planet. When we discovered it, it was already very close to our Earth. A few hours later, the asteroid reached the Earth's North Pole and exploded in the atmosphere above the North Pole.

Did this asteroid hit the earth? Why haven’t we seen asteroids causing devastating disasters to our earth? The main reason is that the size of this asteroid is very small. Based on the data available, scientists estimate that the diameter of this asteroid may be only 1-2 meters, which is much smaller than many satellites, rocket debris and other spacecraft. After such a small asteroid fell into the earth's atmosphere at an extremely fast speed, it burned violently directly in the earth's atmosphere. Due to the uneven heating of the asteroid during its fall, the temperature of the bottom of the asteroid facing the Earth is relatively high, while the temperature of the upper area facing away from the Earth is relatively low. In the case of uneven heating, explosions, disintegration, etc. may occur. Eventually it breaks into smaller fragments and burns up directly in the atmosphere. It did not bring any damage to our earth. After all, our earth has a dense atmosphere. In front of these asteroids, the atmosphere is equivalent to a natural barrier, which can protect the earth's surface from being hit by relatively small fragments.

Richard Moissl of the European Space Agency's Planetary Defense Office said that such asteroids are completely harmless to the earth and usually explode at an altitude of 40 kilometers above the ground. Peter Brown of Western University in Ontario, Canada, interpreted the relevant data and believed that when the asteroid entered the Earth's atmosphere, it released energy equivalent to about 2,000 tons of TNT explosives. Although this asteroid did have a close contact with the Earth, it has already been reduced to ashes in the atmosphere, so there is no need to worry about whether it will cause disasters such as volcanic eruptions.

Seeing asteroids flying towards the earth and eventually exploding in the earth's atmosphere, some friends may be worried about whether the so-called "doomsday" predictions are true. Many people have made some so-called "doomsday" predictions. For example, Mr. Hawking once mentioned that the earth may face many challenges, one of which is climate warming, one is the risk of asteroids hitting the earth, and the other is potential aliens. The risk of civilization invading the earth, as well as the threat of artificial intelligence, etc. Mr. Hawking believes that if these problems occur, such as an asteroid hitting the earth or an alien civilization invading the earth, then our human civilization may end as a result. The only way to avoid these problems may be to immigrate to alien planets.

It is undeniable that the earth is indeed facing problems such as climate warming. Occasionally, asteroids will fly near the earth, but the probability of an asteroid hitting the earth is very small.

Because the universe is very large and the size of asteroids is so small, the possibility of an asteroid and the Earth meeting or colliding in the vast space is extremely slim. Over the past few years, we have rarely seen asteroids hit the Earth. Even if an asteroid does come into close contact with the Earth this time, the asteroid is very small and does not pose a threat to the Earth or humans at all. Many asteroids in the deep universe are similar in size to this asteroid. There are not many asteroids that are relatively large in size and can pose a threat to humans. Even if there are a small number of relatively large asteroids, they may hit the earth. Sex is not big either. Therefore, we don’t need to worry too much about whether an asteroid will hit the earth and lead to the end of human civilization.

Of course, although the probability of an asteroid hitting the earth is really very small, we still need to study how to defend against asteroids. After all, a small probability event does not mean that it will not happen, because no one knows the accident. Which one comes first tomorrow? Scientists have been studying how to deal with these uninvited guests from the depths of the universe for many years. They believe that with the advancement of technology, we humans will have ways to solve the threat of asteroids.