impact event

A Huge Ring-Like Structure on Ganymede Might be the Result of an Enormous Impact

Ganymede's surface is a bit of a puzzle for planetary scientists. About two-thirds of its surface is covered in lighter…

1 year ago

It Was Almost Certainly an Asteroid Impact that Wiped Out the Dinosaurs. In Fact, Volcanoes Might Have Helped Life Recover

It seems almost certain that an asteroid impact wiped out the dinosaurs. But only almost. Another competing theory won't completely…

1 year ago

Something Twice the Size of Earth Slammed into Uranus and Knocked it Over on its Side

Astronomers think they know how Uranus got flipped onto its side. According to detailed computer simulations, a body about twice…

3 years ago