New images from the European Space Agency's Mars Express orbiter have captured strange-looking waves on the Red Planet.

They are the Women in Black. A pair of Government Accountability Office workers nicknamed the “Alien Girls” are touring military bases in an attempt to interview purported UFO witnesses, The Post has ...

A 300-foot-tall anomaly on one of Mars' moons has intrigued observers for years.

For a world to maintain an atmosphere long enough for life to gain a foothold, it seems it needs to be at least as big as ...

Ridley Scott horror film 'Alien', 20th Century Fox is inviting fans to share what the film means to them on social media.