Samantha Rolfe of the University of Hertfordshire writes about the possibility that alien life exists on Earth, but we just can’t see it. Life is pretty easy to recognise. It moves, it grows, it eats, ...

A cosmic oddity being dubbed an alien megastructure by some might have a more realistic explanation – but the reality could be nearly as incredible. For nearly two years, the mystery of KIC 8462852 ...

And over the years, there have been plenty of almosts. The closest was probably Neill Blomkamp's canceled Alien 5, a planned direct sequel to Aliens that would have ignored Alien 3 and Alien: ...

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 ...