Discover this week's must-see night sky events, moon phases, and stunning astrophotos. Sign up for our skywatching newsletter ...

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 ...

Teetering near endangered status, the starlet sea anemone produces “an ancient mechanism” for fighting viruses that ...

The space agency has put out a call for its Moon & Mars Exploration Analog, which recreates the challenges of a long-duration ...

For nearly a century, Death Valley's Racetrack Playa has baffled onlookers with its mysteriously sliding boulders. Scientists ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

A backup version of Skylab was displayed when the Smithsonian’s National Air and Space Museum opened 50 years ago. After ...

Disclosure Day has plenty of UFOs and extraterrestrial species but very little of the human insights found in the filmmaker’s ...

Lilo & Stitch 626 #2 hits stores Wednesday! Can Stitch learn to swim, or will a giant squid ruin everything? Plus: flashback ...

MK-Ultra ran from 1953 to 1973 amid fears the Soviet Union and China were brainwashing prisoners during the Cold War.

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...