Why are we allowing unidentified objects to operate with impunity in our skies?” one expert testified Tuesday.

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

Add Yahoo as a preferred source to see more of our stories on Google. TV has taught us many important lessons about aliens. They are either here to observe us, replace us, eat our cats, or gently ...

One day, probably far off in the very distant future, if astronomers are correct in their assumptions about the vastness of space, Earth will be visited by intelligent beings from another planet.

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself resurfaces: if aliens were to arrive on Earth, would they come to conquer us, ...

Scientists say bad space weather may be one reason alien tech signals have not reached our telescopes in a usable form, after ...