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

Director Steven Spielberg has created many movies about aliens and government cover-ups, including his latest release, ...

People have questioned the existence of life on other planets for centuries, including celebrities. Here are five stars who ...

Given the unique importance of a potential UFO visit, confirmation requires a high standard of evidence. Here are simple tips ...