Experts believe ancient alien civilizations have been living on mars. See more in this clip from Season 1, Episode 7, ...

John Brandenburg—a plasma physicist at an aerospace development company—argues that there was an alien civilization on Mars. He cites data from NASA’s Curiosity rover, claiming that xenon levels on ...

Some claim that Mars was destroyed by an ancient nuclear war. This video starts with their exact words and then explains the science behind the claims. Using simple examples, it shows why isotope data ...

An image of Mars taken by NASA has sparked theories that the agency captured ruins of a lost civilization on the Red Planet.

Mysterious formations spotted on Mars are ramping up claims of an ancient city on the Red Planet, RadarOnline.com can reveal The images were captured by NASA's Mars orbiter and show unusual hills and ...

Mars once had sprawling river systems that rivaled major watersheds on Earth, and scientists have now identified the biggest ones for the first time. Researchers mapped 16 massive drainage basins ...