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. For as long as humans have ...

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, yet a growing group of researchers warns that such a moment might arrive not ...

For most people, the idea of alien contact has been shaped less by astronomy than by cinema. Films have taught us to expect intention: visitors who arrive either with open hands, as in E.T., or with ...