David Duchovny and Gillian Anderson's epic sci-fi series The X-Files is an excellent binge from start to finish.

A cone-shaped item that was photographed by a Mars rover and called into question by a scientist has now been identified. The ...

NASA finds evidence on Mars of water that flowed billions of years ago, broadening the possibilities for life on the Red ...

Get to know NASA's Artemis 2 moon mission with Space.com's exclusive four-part video series Inside Artemis II debuting March 25-March 31.

Conspiracy theorists suggested they had stumbled upon a pyramid on Mars that could've been built by aliens. Scientists are ...