Earth, triggering one of the most devastating mass extinctions in history. In a single moment, life on the planet changed ...

This year, the alert system for defending the planet against incoming space rocks was activated for the first time. It won’t be the last ...

Since the first sharks emerged in the world’s oceans nearly half a billion years ago, the world has gone through five major ...

Science has advanced not just through steady progress, but often through the perseverance of individuals whose ideas were ...

A timeline-driven account based on rock-core drilling and global sediment layers: the initial fireball, tsunami and shock ...

NASA experts explain why a passing asteroid isn't cause for concern, while revealing how often Earth encounters space rocks and preview what's coming in 2029.

The Bosumtwi impact crater in Ghana is different, however. It is well preserved (not deeply eroded or buried under sediments) ...

A massive landslide would have dammed the Colorado River, forming a deep lake that has since dried up. A meteorite impact ...

The largest piece of Mars ever found on Earth was sold for just over $5 million at an auction of rare geological and ...

A new study suggests ancient wood floated into a cave far above the Colorado River when a meteorite-induced earthquake ...