Study Of Craters Suggests Earth Once Had Saturn-Like Rings
The asteroid belt existed around Earth more than 450 million years ago. Earth has had a long history, but millions of years ago, the planet even had Saturn-like ring of …
craters
Scientists Have Finally Found the Origins of a Mysterious Asteroid
Illustration: NASA Their analysis looks convincing, says Andrew Rivkin, a planetary scientist at Johns Hopkins University’s Applied Physics Laboratory who studies the composition of asteroids and who was not involved …