Aliens are often portrayed as diminutive beings, but in ‘reality’ they could be much larger and heavier than science fiction films suggest. Scientist Fergus Simpson has calculated the minimum size ...

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 ...

Earth's radius is 6,371 kilometres (3,958 miles), making the UFO more than 159,275 kilometres (98,968 miles) long. Article continues below ADVERTISEMENT Mr Waring also believes the UFO came from the ...

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 ...

ALIENS are likely to have a brain the size of a planet compared with us, a leading UFO-hunter says. The first aliens will have been around billions of years longer than humans, according to Dr Andrew ...