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. These bits of rock and dust ...

Nearly two dozen ‘Earth-like’ planets that could be crawling with alien life have been identified by scientists. Exoplanets are what scientists call worlds that orbit other stars (though some are ...

A rock retrieved from a near-Earth asteroid is crawling with microbial life, scientists have discovered. But the bacteria on its surface almost certainly came from Earth. The sample is part of a ...