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 ...

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

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 ...

The asteroid 2025 OW measures about 210 feet in length. It is reported to pass by Earth on July 28, 2025, at a distance of 393,000 miles, which is about 1.6 times the average distance to the moon. It ...

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 ...

Scientists have discovered that Earth could have at least six minimoons that we never knew existed. A minimoon is a small ...