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.

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

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

Earth, triggering one of the most devastating mass extinctions in history. In a single moment, life on the planet changed forever. This video dives into the terrifying and fascinating aftermath of ...