The Science: Europa has been considered as a top contender for alien life for even longer than Enceladus, thanks to its ...

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. Researchers have found ...

The finding suggests phosphine—a potential biosignature—shouldn’t be viewed as evidence of alien life until natural, non-biological sources are ruled out. Reading time 5 minutes For scientists, the ...