If you've been following exoplanet research over the last couple of years, you've definitely heard of K2-18b. Located 124 ...

When a mysterious crescent appeared over Moscow in 1967, alien enthusiasts were unaware they were actually tracking a 3-megaton weapon designed to bypass American radar.

The tunnel looked dark and lifeless at first. Then flashes of pale white darted through the water. One sweep of the net revealed tiny albino fish that looked almost unreal. It felt like discovering ...

Superman has one of the greatest rogues’ galleries in comic book history, and these are the most powerful villains he’s ever faced.

Crystal Grottoes holds the distinction of being Maryland’s only commercially operated show cave, which is a fancy way of saying it’s the only cave in the state where you can safely explore without ...

Steven Spielberg's War of the Worlds, starring Tom Cruise and Dakota Fanning, is invading a new streaming platform in March. Find out more.

Arnie said, "Get your ass to Mars", but is it really a good idea? We asked the experts about our Martian future.

President Trump directed his administration to release files on UFOs and any "alien and extraterrestrial life," an issue that has drawn decades of fascination — and spawned more than a few wild ...

Karoline Leavitt addresses alien conspiracy theories after former president Obama made comments about aliens.

These original Xbox couch co-op titles made highly memorable experiences for friends and family alike. Here are 10 standouts.

The organizers of the Munich Security Conference, Europe’s main defense-related forum, said in a report that President Trump is helping destroy the postwar international order.