Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

Disclosing government documents about UFOs won't mean much without hard physical evidence for alien spaceships or alien ...

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

For more than six decades, astronomers have listened for possible signals from extraterrestrial civilisations, with no confirmed detection to date. A .

Mars presents one of the strangest sights in the solar system: a blue-tinted Sun setting against a red sky. This episode explains the physics behind this eerie phenomenon, from fine dust particles to ...

President's quick-fire-round answer has led to a flurry of comments.

Obama thinks extraterrestrials exist and he’s not the only former president to think so... here’s what the scientists believe ...

Alien and Predator are iconic sci-fi horror franchises that have inspired many must-play games.

A new paper suggests that BARSOOM may have been alive on the planet, and was killed in the Viking experiments.

Every week, Sarah Knapton, our Science Editor, and Joe Pinkstone, our Science Correspondent, demystify your supernatural experiences. From ghoulish encounters to bizarre coincidences, there’s always ...

David Duchovny and Gillian Anderson returned for Seasons 10 and 11 of The X-Files in 2016, and its brutal reception was completely unfair.