Astronomers have identified Proxima Centauri b, a rocky planet just over four light-years away, as the closest potentially ...

A 36-mile-long starship designed to carry 1,000 humans on a one-way trip to the nearest known exoplanet has won a major interstellar design competition, raising hard questions about what it would ...

President Trump said he's directing the Pentagon and other federal agencies to identify and release files related to UFOs and extraterrestrial life.

Uranus and Neptune will also be on the scene, too dim to see with the naked eye.