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.

If and when SETI discovers alien life, then a revised Declaration of Principles guarantees that once the discovery has been verified, its disclosure will come soon thereafter. When you purchase ...

Delivering a refreshing fusion of science, pop culture, history, and esoteric humor, renowned astrophysicist, lecturer, and best selling author Neil deGrasse Tyson takes us on a whirlwind tour of UFO ...