The White House is mocking the idea of the U.S. retaining secrets involving alien encounters by launching a space-themed ...

In a world easily startled by sensationalism, Tyson offers a cool, gentle voice of reason amid the unchecked fascination with alien visitation.

For centuries, humans have gazed at the stars and wondered whether we are alone in the universe. The question of extraterrestrial life is one of science, philosophy, and pop culture's most enduring ...

Editor's note: On Friday (May 22) the Department of Defense released a second tranche of UFO files, adding another 60 documents to its ongoing database. These include new videos from the military, and ...