NASA officials have previously spoken of the possibility of extraterrestrial life amid scientific uncertainty while ...

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.

This is read by an automated voice. Please report any issues or inconsistencies here. In an appearance at the SXSW Film & TV Festival, Steven Spielberg revealed his own feelings about intelligent life ...