In science-fiction stories, companies often mine the moon or asteroids. While this may seem far-fetched, this idea is edging ...

Astrophysicist Josep Trigo-Rodriguez of the Institute of Space Sciences near Barcelona, Spain, believes it is an interstellar ...

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system.

Each month, NASA's Planetary Defense Coordination Office releases a monthly update featuring the most recent figures on NASA's ...