A well-worn expression among oceanographers and others who explore the watery depths of planet Earth is that we humans “know the surface of Mars better than our ocean floors.” Covering more than 70 ...

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 ...

Photos of amazing, almost unreal places Who needs fantasy? Earth is full of “alien planets” and surreal beauty beyond ...

Highway 395 is one of those roads where people tend to keep their foot on the gas, eyes fixed on distant destinations, ...

After a two week expedition off the coast of Brazil, an international team of researchers discovered 31 new marine species, ...

The Ultimate Survivors Meet Their Match on Mars Tardigrades, those legendary “water bears” ranging from a mere 0.1 to 1.5 ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

Spend your summer reading cozy romantasy tales, hard sci-fi adventures, ghostly thrillers, and horrifying alt-reality stories ...

We explore the litany of cinematic deaths of the 1990s and select the five that prove the funniest of the lot. Read more ...

A comet screaming in from another star system carried alien ice ratios never seen before. What scientists found inside its spinning nucleus is reshaping how we picture worlds beyond our sun.