The destroyer will fly over the earth tomorrow, and astronomers have repeatedly worried that it will hit the earth.

On March 4th, IT House reported yesterday that a near-earth asteroid named Apophis will fly over the earth tomorrow (March 5th). This asteroid has caused many worries to astronomers because it has a certain chance of hitting the earth.

The last time the earth was "attacked" by an outer space meteorite was eight years ago. A six-story space rock directly hit the earth and exploded over Chelyabinsk, Russia, injuring 1200 people. Recently, the National Aeronautics and Space Administration (NASA) said that the Ravager will fly over the earth again this Friday, when its distance from the earth will be about100000 miles (about 16093440 kilometers). Astronomers are taking this opportunity to practice the reaction speed and observation ability of astronomical observation points around the world to space meteorites, so as to prepare for possible space dangers in the future.

If the orbit model shows that the asteroid and the earth will reach the same place at the same time, then the tragedy of the meteorite hitting the earth may happen, especially when the meteorite is very large. After all, the meteorite impact ended the rule of dinosaurs on the earth. But it is not hopeless to stop this kind of thing: if humans identify a dangerous asteroid or meteorite before impact, theoretically all humans can do something to stop it.

Whether the asteroid impact can be successfully stopped depends on finding the threat in time, which requires a lot of observation by astronomers all over the world. However, although astronomers have identified more than 25,000 near-earth asteroids so far, most of them are too small to attract much attention. Therefore, although there are a large number of asteroids orbiting the earth, most of them are not enough to cause human anxiety.

Later, astronomers ruled out the possibility of the destroyer hitting the earth in 2029 through more accurate observation, and concluded that it had a chance to hit the earth in 2036, but this conclusion was later ruled out. But early concerns about this asteroid prompted people to name it Apophis. In the words of NASA, it refers to an Egyptian snake, representing evil and chaos. Now, astronomers are convinced that this destructive star will not pose a threat to the earth for at least several decades. But this space meteorite will still pass by the earth tomorrow, which provides astronomers with a valuable opportunity to observe a larger asteroid at close range.

IT House learned that a report in June 65438+1October last year pointed out that the speed of the Ravager suddenly increased and its orbit changed. According to the current orbit and running speed of the destroyer, it is possible to hit the earth on April 1968 12. Once it hits the earth, it will cause TNT explosion to release about 880 million tons of energy.

However, the probability of a destructive star hitting the earth is still low. According to NASA, the probability that this destructive star will hit the Earth in the next 48 years is150,000. Research by the University of Hawaii shows that the probability of impact is even smaller, at one in 530,000. Astronomers are not fortune tellers. It is impossible for them to predict the long-term future of this asteroid according to the current situation, so hitting the earth is not a very certain thing.