At night, when we look up at the sky, we often
Asteroids are rocky bodies orbiting the sun. They are found in large numbers between the orbits of Mars and Jupiter. These rocks can have a diameter that can be as small as 10 meters, or as big as 500 kilometers. And they often collide with planets and moons in the solar system. Thanks to the protective layer of atmosphere around the Earth, smaller meteorites are burned down before they touch its surface. But when the rock is big enough, it collides with earth, and the result of the impact is often devastating. Here are 3 of the biggest such impacts in the history of planet Earth:
1) Vredefort Crater:
Located at the Free State in South Africa, the Vredefort crater is as old as 2 billion years. It is also known as Vredefort Dome, and it was declared a UNESCO World Heritage Site in 2005. With an estimated diameter of 300 km, it is the world’s largest known impact structure.
2) Sudbury Basin:
Estimated to be around 1.8 billion years old, Sudbury Basin is located
3) Acraman Crater:
The Crater is now known as ‘Lake Acraman’, and it is located in South Australia. Formed around 580 million years ago, it has an estimated diameter of 90 km.
There has not been a major asteroid hit in