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.

AMSTERDAM (Reuters) - Nearly half of humans believe in alien life and want to make contact, a survey in 24 countries has found, in what researchers said helps to explain the lasting popularity of the ...

"Where is everybody?": This question, about the lack of aliens in the vast universe, is called Fermi's paradox - Copyright NASA/AFP/File HO "Where is everybody ...

Emma Stone has declared that she believes in aliens. The Poor Things star, 36, explained that she was inspired by the scientist and astronomer Carl Sagan, who felt that believing humans were alone in ...