With thousands of planets outside Earth's solar system, there's a pretty good chance that some of them have the conditions needed for life. If alien life does exist, scientists aren't quite sure what ...

Forget the sci-fi image of aliens as delicate, waif-like creatures - they’re probably absolutely massive, a scientist says. Fergus Simpson of the University of Barcelona says that - according to ...

The alien anomaly was photographed by NASA's Mars Curiosity rover on the 855th day of its mission. Photos of a boulder-strewn field at first glance show nothing but rocks and dust. But UFO hunters are ...

When it comes to extra-terrestrials, you'd be forgiven for picturing them as little green men. But Britain's top biologist has claimed they could be much bigger, and far more terrifying than the man ...

There are millions of planets out there that could contain intelligent life. We can't look at them all, so which should we focus on? Using nothing but statistics, astronomer Fergus Simpson predicts ...

We haven't found any aliens yet, but just using statistical techniques, we can make some pretty good guesses about what they'll be like if we do. The answers may surprise you. Show more There are ...