Threats to the Earth

Threats to the Earth

The earth is just a planet in the solar system, and its own life is influenced by the sun. When the sun's star ends its life and turns into a red giant in a few billion years, the earth will be swallowed up by the sun.

Apart from the influence of the sun, any small fluctuations in the universe could destroy the earth and wipe out all kinds of life on the blue planet.

At present, the greatest threat to the earth is the impact of asteroids and other celestial bodies. From the perspective of the impact effect of the asteroid with a diameter of 10 kilometers more than 60 million years ago, the impact of such magnitude on the earth itself is not big, but some species on the earth is a catastrophe.

The impact of an asteroid, for example, caused a change in the atmosphere caused by soot, which directly led to the extinction of large reptiles such as dinosaurs.

Some astronomers have speculated that in about 10,000 years, a cosmic object more than 100 meters across will hit the earth. It would take roughly 100,000 years for something 1,000 meters across to collide with the earth.

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