The US government's registration of alien.gov and aliens.gov has triggered global speculation about a potential UFO disclosure and renewed debate over extraterrestrial life.

Hundreds of thousands or millions of Americans believe they have been abducted by aliens. In a typical case, an abductee recounts lying in bed one night when an eerie feeling overcomes him, and alien ...

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 ...