Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Stacker compiled a ranking of cities with the most UFO sightings in Ohio using data from the National UFO Reporting Center.

Stacker compiled a ranking of cities with the most UFO sightings in Pennsylvania using data from the National UFO Reporting Center.

In a recent two-week voyage through the southern Atlantic, scientists uncovered an astonishing array of 31 previously unknown ...

Ancient deep-sea organisms suggest movement, sexual reproduction, and complex animal life began earlier than previously thought.

At 79 years old, Steven Spielberg returned to familiar roots with his recently released science fiction adventure film about ...

Lovable alien E.T. the Extra-Terrestrial will soon be able to buy and build in LEGO form, with movable appendages and a light ...

A siphonophore—a colonial marine invertebrate related to the venomous stinging Portuguese Man-o-war—is scanned using Deep ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

What makes something alive? We simply don't know, but synthetic biologists are a step closer to providing an answer thanks to ...