The late Professor Stephen Hawking had a chilling "dark forest" theory about alien life 15 years ago – and it could be more plausible than ever. Earlier this year his predictions about aliens ...

The actor reckons the human race are aliens after arriving from another planet after the dinosaurs became extinct ...

In last week’s The Universe column, I fielded a reader’s question about galaxy collisions in an expanding universe. The answer deals with vast distances, inscrutable forces and the ultimate fate of ...