Of course, there are also a few stars that are planets orbiting the sun in the solar system. Space is not empty, and even in the solar system there are not only eight planets, but also many asteroids and celestial fragments of various sizes.

When we look up at the starry sky, most of the stars we see are stars close to the solar system in Milky Way , and more than 6,000 can be seen throughout the day. Of course, there are also a few stars that are planets orbiting the sun in the solar system. Space is not empty, and even in the solar system there are not only , , but also many asteroids and celestial fragments of various sizes.

Space is not empty, and the earth is not as safe as we imagined when it revolves around the sun.

Recently, in Tomsk Oblast, Russia, a flash of light crossed the night sky, followed by a huge explosion, accompanied by a dazzling light. Some citizens who were sleeping soundly were awakened. The whole process lasted for about 8 seconds before returning to calm. But for the locals, they did not fall asleep peacefully again in a wakeful state, because they are currently in the Russian-Ukrainian war, everything is possible.

No one knows what happened. Many surveillance cameras have captured related images, which can be learned from the huge sound and dazzling light. The power of this incident is naturally not to be underestimated, and even residents more than 200 kilometers away saw the light. What exactly is the huge flash of

?

The whole process lasted only 8 seconds, but it was as bright as daylight as the flashes across the night sky. Similar events have been staged in Russia before. In fact, similar scenes have occurred in many places. According to Victor, a professor at Ural Federal University, this flash of fireball is likely to be a falling meteorite .

Scientists speculate that the meteorite falling on the earth is about 1 meter in diameter, which is considered to be a small scale and generally does not cause too much destructiveness.

If some celestial fragments orbiting the sun are too close to the earth, they will sometimes change their orbits due to the gravity of the earth and eventually plunge head-on toward the earth. Depending on the size of the celestial debris, the destructiveness caused by impact on the earth is also different. If a meteorite with a smaller diameter is flying at high speed in the atmosphere, it will eventually split into small fragments, such as meteorite rain , which will fall to the ground. Many meteorite hunters look for such meteorite particles, but because the location of the meteorite impact is sometimes difficult to confirm, it is extremely difficult to find some small meteorites.

The most ideal place to search should be frozen ice or snow. Seize the opportunity to arrive at the scene as soon as possible. You may find meteorite particles. Since they are rare, the high price of meteorite particles often attracts people to search for. Of course, they are more useful for scientific research.

The earth is not as safe as we imagined

So far, except for the earth, humans have not found celestial bodies that are truly suitable for life to survive, and of course, they have not found the existence of extraterrestrial life . Although the earth is very livable, it is not as safe as we imagine. Needless to say, various natural disasters on the earth are all natural disasters. Earthquakes, tsunamis, climate sudden changes, etc. are not "fuel-saving lamps".

In addition to this, there is an inevitable disaster for the earth, that is, the impact of extraterrestrial celestial bodies. 65 million years ago, an asteroid with a diameter of 10 kilometers hit the surface of the earth, which also led to the extinction of the dinosaur that ruled the earth for 160 million years at that time.

Asteroids with a diameter of more than 500 meters are enough to pose a threat to humans, not to mention that the energy released by the impact of a 10-kilometer asteroid is even more irresistible. Even if humans face such a threat, there is no way!

The current situation is still the result of the moon and Jupiter "protecting" the earth, otherwise more celestial fragments will come towards the earth.

The one closest to us was in 2013. In Chelyabinsk Oblast, Russia, a meteorite came through the atmosphere. Due to high-speed friction, a large number of debris exploded in the atmosphere, and at least more than 1,000 people were injured to varying degrees.At that time, there was a rumor about meteorite impact. The diameter of this meteorite was about 20 meters. It exploded and disintegrated at the moment when it was approaching the ground. From some analytical videos, we can see that there seemed to be a faster "light needle" hitting the meteorite. No one can explain what happened.

How to deal with the threat of celestial body impact ?

The threat of extraterrestrial celestial bodies hitting the earth will never disappear on its own. The impact of the earth by asteroids is an inevitable result. What methods can humans use to deal with this result?

Judging from the current situation, humans are not particularly able to do. First of all, we must master the flight orbits of all asteroids that are potentially threatening to the earth as much as possible. If a large-sized asteroid is really about to hit the earth, then you can also know in advance and prepare for anti-collision in advance. Secondly, take the initiative to deal with the impact of celestial bodies. The best way is to change their flight orbits so that they do not hit the earth.

Not long ago, a NASA detector just completed such an action. The "Dual Asteroid Redirection Test" (DART) mission spacecraft successfully collided with the asteroid "Dimorphos". The orbital period before and after the collision was reduced by about 32 minutes.

You should know that the impact of a small spacecraft can change the orbit of the asteroid as big as a football field, and the orbiting period is reduced by about 32 minutes. This is a successful attempt. In the future, this method may be used to complete the defense of asteroids, and if it comes, knock it away.

says that in the end

As of 2020, humans have discovered nearly 30,000 asteroids. They are likely to fly over the earth when they orbit the sun and may collide with the earth.

Similar meteorite impact events often occur. For example, in December 2020, in Yushu, Qinghai, many citizens saw a fireball dragging its long tail across the night sky, which instantly shone as bright as daytime and exploded. The whole process lasted for nearly 1 minute. In fact, I just want to say that extraterrestrial celestial impacts are more common, and in severe cases, it may even lead to biological extinction, so be careful to deal with it.

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