An ancient Martian system of canyons and valleys could be home to archaic life forms, a ground-breaking scientific paper has found. Scientists investigating the Red Planet’s mind-boggling cave system ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA / Futurism Scientists have long been interested in the caves of Mars — not just because they could provide a home for future ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Images of the eight skylights opening up into possible karstic caves in Hebrus Valles on Mars. .