They are often depicted as either little green men, bug-eyed creatures or terrifying monsters intent on wiping out all life on Earth. But if aliens do exist, what might they actually look like?

Because there's more to extra-terrestrial life than humans with prosthetics stuck to their foreheads.

What do you think aliens look like? Well, an artist’s impression shows what most Brits imagine – and they have two heads, gills and the ability to change colour. Researchers asked 2,000 people to ...

16:59, Wed, Nov 1, 2017 Updated: 17:06, Wed, Nov 1, 2017 Rather than being other-worldly, extraterrestrial beings may be indistinguishable from human beings scientists have claimed. According to new ...

BRITISH scientists have claimed alien lifeforms may have evolved in a similar way to the organisms here on Earth. A new study from the University of Oxford suggested that the process of natural ...

This artist's impression shows what Brits reckon an alien would look like – with two heads, gills, and the ability to change colour. Researchers asked 2,000 people to describe what they think an ET ...

Hideously bloated slug-like aliens could be coming to "wipe out" humans in a "Star Wars" invasion, an Oxford University biologist has warned. If the universe is teeming with life as he expects, these ...