Elon Musk has turned a long-running joke about being an extraterrestrial into a central part of his public persona, even as he argues that humanity may be the only intelligent life in the universe.

Add Yahoo as a preferred source to see more of our stories on Google. Is it the invasion of the genome snatchers? Just in case the idea of aliens walking around in human skin suits wasn't frightening ...

Add Yahoo as a preferred source to see more of our stories on Google. (Photo by BRENDAN SMIALOWSKI/AFP via Getty Images) A new genetic study claims alien DNA could be inserted into humans. Dr. Max ...

For Ancient Astronaut Theorists, a twin Sphinx supposedly buried deep in the sand at the Giza Plateau could be the key to ...

I saw an article in the Nikkei newspaper titled 'AI is an 'alien intelligence': Philosophy and psychology as a breakthrough for understanding'.This year's Nobel Prize in Physiology or Medicine was ...

"Humans evolved from apes." Many people were taught this in school. However, when you start thinking about it a little more deeply, various questions arise.Why did only humans build a civilization?

‘We’re creating alien beings … and the reality is we only have a couple of years to adapt to that’ … computer scientist Geoffrey Hinton in Toronto, Ontario. Photograph: Cole Burston/The Guardian The ...