From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

A mysterious metal shard, once thought to be a piece of a UFO that crashed in 1947, has sparked years of wild speculation.

One of Britain’s most prominent space scientists believes humanity may finally get an answer to one of its oldest questions ...

Is it the invasion of the genome snatchers? Just in case the idea of aliens walking around in human skin suits wasn’t frightening enough. An outlandish study asserts that aliens might have abducted us ...

A Border Patrol truck drives along the U.S.-Mexico border in front of a bollard-style fence. Agents say this type of fence gives them good visuals on activity going on across the border, while ...