The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure has dropped by two-thirds. The reasons why, experts say, are complicated.

They come in peace. Steven Spielberg’s new UFO movie has reignited speculation within the alien conspiracy theory community, especially after cryptic billboards teasing the upcoming film popped up ...

Steven Spielberg’s new UFO movie has reignited speculation within the alien conspiracy theory community, especially after cryptic billboards teasing the upcoming film popped up across the country this ...

Officials were told to hunt down 'extraterrestrial' tech so they could copy it on the battlefield, according to secret declassified files ...