Elon Musk has turned a long-running joke about being an extraterrestrial into a central part of his public persona, even as ...

Elon Musk has spent years oscillating between joking that he is an alien and warning that contact with real extraterrestrials ...

"The idea that we're alone in this vast expanse of the universe, truly -- not that we're being watched, but that we're alone out here -- is a pretty narcissistic thing to think," Stone shared during ...