When a six-mile-wide asteroid slammed into Earth 66 million years ago, it didn’t just wipe out the dinosaurs. New findings ...

Space is filled with deadly forces, supernovae, gamma ray bursts, and asteroid impacts that can wipe out life in an instant.

A comet that was born in another solar system and could be billions of years old is hurdling through Earth’s solar system — a ...

Although it won’t hit Earth, an asteroid once labeled a “city killer” is now back in the spotlight — this time, because it ...