For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” ...

Many experts believe that aliens exist in the universe, with the key elements needed to sustain life found on comets, ...

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 ...

Humans should look to planetary alignments outside of the solar system when searching for signatures of extraterrestrial communications, scientists say. The nascent search for radio transmissions from ...