Add Yahoo as a preferred source to see more of our stories on Google. Physicists have worked out exactly how fast time passes on Mars compared with Earth. (CREDIT: Wikimedia / CC BY-SA 4.0) On Earth, ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Mars is racing through time ...

Since the 1970s, planetary geologists have known that volcanic features cover large swaths of Mars. Early Mariner 9 images ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab. Everything is wired together so well that you rarely think about the ...