The White House is mocking the idea of the U.S. retaining secrets involving alien encounters by launching a space-themed website that touts the arrests of immigrants unauthorized to live in the U.S.

Here's a rundown of 21 celebrities who believe aliens are real, and what they've said about our extraterrestrial neighbors.

Never before broadcast, UFO and Alien stories are told directly by the people who experienced them. As we are taken through the events as they unfolded, UFO experts and ‘debunkers’ offer their opinion ...