Mystery Over 'Aliens.gov' After Registry Reports Surface ...

IMAGES of an unusual pyramid-shaped structure on Mars that look like those in Egypt have reignited wild theories about aliens ...

Andy Weir discusses his science-fueled novel “Project Hail Mary,” which has been adapted into a film that opens in theaters ...

Explore the darkest corners of the abyss with 18 terrifying creatures found at the bottom of the ocean. These are Earth's ...

By Will Dunham WASHINGTON, March 16 (Reuters) - Astronomers have spotted a planet orbiting a star in our neighborhood of the ...

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian ...

The planet, named L 98-59 d, is covered with magma and ​enveloped by a noxious and fiercely hot, sulfur-rich atmosphere.

Beneath Triton’s frozen surface, scientists believe a vast subsurface ocean may exist. If confirmed, this distant moon could ...

Titan, Saturn's largest moon, happens to share some truly remarkable geophysical and geological processes with our home ...

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder ...

Barack Obama was having a bit of fun with a podcaster on whether aliens are real. Alas, even ex-presidents can’t just speak ...

Talk about a hot mess. Scientists have uncovered a hellish “lava world” where temperatures soar to a blistering 2,700 degrees ...