The surface of Mars looks like an empty red wasteland. But if you look a bit closer, the remnants of an ancient alien civilization begin to take shape. At least, that's the conclusion of George J.

Add Yahoo as a preferred source to see more of our stories on Google. If humans are ever to land on Mars, they will need somewhere to stay—a protective shell that can shield them from the sun’s harsh ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The European Space Agency has released new computer generated images of a "butterfly" crater on ...