Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Is it the invasion of the genome snatchers? Just in case the idea of aliens walking around in human skin suits wasn’t frightening ...

Human-alien hybrids fill science fiction stories, and the most famous of these is Mr. Spock from Star Trek — the logical science officer of the starship Enterprise. Seeing such real-life beings born ...

What if the little green men that are commonly perceived as a typical "alien" are really just humans, but from a different period in the evolutionary timeline? An example of this would be flight, ...

You've been magically transported to a room and given three choices. Choice 1: You can know the details of three different alien civilizations. These are civilizations that have (or had) reached at ...

Obama walked back comments made on a podcast in which he appeared to claim that aliens are real.