A strange purple object aboard the ISS sparked alien fears online, but NASA revealed it was a potato experiment. It shows how ...

A strange, tentacled object that went viral online was revealed to be a space-grown purple potato. Astronaut Don Pettit ...

Astrobiologists in Germany are developing a new testing device that could help tease dormant alien microbes into revealing themselves — and its key ingredient is a common amino acid that’s found in ...

Add Yahoo as a preferred source to see more of our stories on Google. Part of what made the xenomorphs so scary in the original Alien and its sequels was that nobody really knew what the xenomorphs ...