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

For over six decades, the Search for Extraterrestrial Intelligence (SETI) has been tirelessly scanning the cosmos for signs of alien life. Despite its extensive efforts, the universe remains eerily ...

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 ...

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...