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 ...

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

The role of Newt was perfectly played by nine-year-old Carrie Henn, who became famed for her great scream.

A 300-foot-tall anomaly on one of Mars' moons has intrigued observers for years.

The tantalizing prospect of inspecting a mysterious monolith on the surface of Mars moon Phobos was proposed earlier this ...

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 ...

Credit: NASA Titan’s resources could one day make Saturn’s largest moon a major outpost for deep space exploration. Titan is ...

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