Asteroid 2024 YR4, which once appeared to be on a collision course with Earth, may hit the moon, which could create some ...

A massive asteroid, named 2025 OW, resembling a 25-storey building, is approaching Earth next week. It measures about 220 ...

Asteroid 2025 OU1, about 140 feet in diameter, will safely pass Earth in 2025. While it poses no immediate threat, scientists ...

This week's panel with host Stefan Grobe ...

"In my opinion, planetary defense is an operational mission which should be formally tasked to U.S. Space Command." ...

The night sky never stays still. And sometimes, it brings a quiet reminder that we share this vast space with wandering rocks ...

NASA is monitoring a giant space rock that is set to zoom past Earth next week – and it's bigger than the Leaning Tower of ...

Aliens are visiting our solar system. Not little green men, sadly, but natural alien objects—cosmic bodies such as comets and ...

Heliostats that harness sunlight by day could help detect asteroids by night, offering the U.S. a scalable planetary defense ...

Astronomers think small space rocks from beyond our solar system routinely strike Earth—but proving it isn’t easy ...

You might think Earth has just one moon — but scientists say we’ve actually got a small family of them quietly circling us at ...

Comet 3I/ATLAS was first identified by the Asteroid Terrestrial-impact Last Alert System (ATLAS), a global network of four ...