US congressman Tim Burchett recently claimed that aliens have visited Earth and that they made contact with humans.

Add Yahoo as a preferred source to see more of our stories on Google. (Photo by BRENDAN SMIALOWSKI/AFP via Getty Images) A new genetic study claims alien DNA could be inserted into humans. Dr. Max ...

The human quest to look for neighbours in the nearby galaxies is never-ending, and the idea that we might not be alone in the universe has been discussed for generations. Scientists and varied ...

What would alien life from another planet be like? But we rarely ask the opposite: What would they think of us? Theoretical ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

From the ugly to the awesome to the downright weird, Hollywood has brought a whole cosmos' worth of alien characters to the silver screen — but what do we know about the human beings who portrayed ...