WASHINGTON, D.C. — NASA shares an update on its multibillion-dollar effort to build a permanent moon base on the lunar south pole. On Tuesday, the U.S. space agency announced nearly $600 million in ...

As the peerless "Aliens" turns 40, here are 26 reasons it's still the greatest sci-fi action movie of all time.

America's most daring, extraordinary feat, landing astronauts on the moon, remains the pinnacle of achievement by anyone ...

On January 2, 2019 at 9:26pm EST, China's Chang’E-4 probe did what no human or machine has ever done before, and landed on ...

The claim that actor James Franco shared authentic security footage of an alien on July 13, 2026, is still under ...

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

K2-18b is one of the most promising worlds for the search for extraterrestrial life, so astronomers conducted an unusually ...

Former Pentagon UFO investigator Luis Elizondo claims the US government possesses unreleased photographs showing what appear ...

The probe sent back the first pictures of the asteroid Kamo’oalewa. Next step: landing on the surface and collecting samples ...

Scientists suggest the Moon could act as a quarantine checkpoint before samples from Mars are brought back to Earth.

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...