Some people treat the idea of aliens as nonsense, but scientists actually believe that the notion we're alone in the entire ...

It's one of life's biggest questions – are we alone in the universe? Now, in good news for sci–fi fans, one of Britain's top space scientists has declared she is 'absolutely convinced' there are ...

Add Yahoo as a preferred source to see more of our stories on Google. The great physicist Enrico Fermi first posed the challenging question over half a century ago, wondering why we appear to be alone ...