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?

For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” who look suspiciously like us in rubber suits. The scientists who actually ...

For most people, just being near a bug is grounds to flip out and reach for the nearest can of Raid. Or a flamethrower. But if you're Dr. Grace Sward, an entomologist with a PhD from Ohio State ...

Alien bugs could hitch a lift on spaceships to Earth and attack humans, researchers warn. These extraterrestrial viruses may be a 'danger' to our immune systems, potentially killing large numbers of ...

14:36, Tue, Nov 21, 2017 Updated: 15:38, Tue, Nov 21, 2017 About 3.8 billion years ago existence first sprang up but scientists have been unable to figure out how it started. However, the mystery may ...