Do aliens exist? Could Earth really be the only planet hosting intelligent life? Debates over the existence of ...

Available as of April 15, a new installment written by Peter Hogan, with art by Steve Parkhouse, will finally give Harry and his friends the sendoff the show never had. Fittingly, the series comes ...

The Apophis asteroid, once feared to hit Earth, is less than three years from making an unprecedented approach toward Earth.

Two Earth-sized planets orbiting TRAPPIST-1 are locked in permanent day and night, with heat differences suggesting they are ...

Steven ​Spielberg described his 1977 UFO film "Close Encounters of the Third Kind" as ‌his own "speculation" about ...

A research team has developed a new approach to detecting life beyond Earth that does not rely on identifying specific ...

A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time.

Behind the acid blood and jump scares of the Alien franchise is an even more insidious horror: a single employer with ...

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and living safely—beyond our planet. “I was like, ‘OK, I'm pretty sure that ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

If the government confirms nonhuman intelligence, psychological research offers clues about the range of ways humans might ...

These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial ...