In a new study, researchers are suggesting something radical: that the Red Planet may be hosting life under its icy exterior.

The Orionid meteor shower is about to peak. Experts say a bright waning moon may make it difficult to spot early Monday.

Photosynthetic habitable zones' could exist beneath radiation-filtering ice on Mars, offering scientists another region in ...

"Unlike Earth, Mars lacks a protective ozone shield, so there is 30 percent more harmful ultraviolet radiation at the surface ...

The so-called "Moon Tree" — grown with seeds that were flown around the moon — was wheeled out in a wagon accompanied by ...

Methane is a powerful greenhouse gas. Windfall Bio sees that as fertile ground for innovation. In mid-September, the ...

Scientists are eager to see if Europa's subsurface ocean could support life, as NASA's Europa Clipper is scheduled to begin ...

A SpaceX Falcon Heavy rocket got the Clipper off-Earth, separating from the spacecraft an hour after launch. The Clipper is ...

NASA's Europa Clipper probe will study Jupiter's moon Europa, which is thought to have an underground ocean and a potentially ...

LAKE FOREST, Calif. -- To cheers and applause from kids wearing spacesuits and star-studded T-shirts, a tree was planted in ...