Before the birth of human civilization on earth, many asteroid have collided. We know that due to one of those Chicxulub asteroids, dinosaurs became extinct from the earth 60 million years ago. Due to this 150 km wide asteroid, the 10 km wide Chicxulub crater was formed near the Gulf of Mexico. There were also many asteroids due to which the Earth’s surface and atmosphere got their present form.
The probability of a collision with a large asteroid is 10 times higher
It is difficult to estimate how many incidents of collision of asteroids have happened on our planet i.e. Earth. But now it has been found that the probability of a giant asteroid hitting the Earth is about 10 times more than previously thought. According to researchers from the Southwest Research Institute, this means that after a certain time, the probability of hitting Earth with an asteroid as big as Chicxulub has now increased 10 times.
Oxygen can be exhausted on Earth due to asteroid
According to researchers, if a large asteroid strikes again on Earth, it will not only cause huge destruction, but will also reduce the amount of oxygen in the atmosphere. In such a situation, the threat to the existence of human life can increase. However, scientists believe that in the coming 100 years, the Earth is not threatened by any big asteroid.
How Much Damage to Earth by Asteroids?
As soon as they enter the Earth’s atmosphere, celestial rocks or asteroids break up and burn up and are sometimes visible from Earth in the form of meteorites. If they are too large, they can damage the earth, but small pieces do not pose much danger. At the same time, usually they fall in the oceans because water is present on most of the earth.
NASA’s eye on asteroids up to 100 years
If a high-speed space object is likely to come closer than 46.5 million miles from Earth, then space organizations consider it dangerous. NASA’s Sentry system already monitors such threats. In this, for the coming 100 years, there are currently 22 such asteroids which have the slightest chance of hitting the Earth.