When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Investigating an area of interesting light rock seen from orbit, Curiosity found some particularly weird-looking structures.

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

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 ...

In the 21st century, the theories regarding the existence of aliens refuse to dial down. Now, the recently resurfaced NASA photo of Martian planet has gone viral on various social media ...

An image taken by Curiosity last month has sparked claims of a long-lost civilization on the Red Planet after some spotted a ...

In Death Valley National Park in California, a dry lakebed called Racetrack Playa has long puzzled visitors. For years, this ...

Avi Loeb’s White House panel has asked the Pentagon for videos and files on unexplained aerial sightings ...

In 1947, pilot Kenneth Arnold's report of strange objects over Mount Rainier and a fateful media misquote created the 'flying ...