If humanity ever makes contact with an intelligent extraterrestrial civilization, we will have no shortage of questions.

Some "Star Trek" aliens measure life in centuries or even millennia. Meet the remarkably long-lived species scattered across ...

New claims that the United States has recovered remains of four separate species of alien life are sending shockwaves throughout the UFO disclosure movement, further drumming up conversations ...

Add Yahoo as a preferred source to see more of our stories on Google. The Borg queen smiles in Star Trek: First Contact - Paramount Some of the most famous alien races in all of science fiction ...