Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

Viruses that infect bacteria can still do their job in microgravity, but space changes the rules of the fight.

Exceptionally preserved fossils from the Ediacaran period challenge what scientists thought was possible in sandstone. In the fossil record, creatures without hard shells or skeletons, such as ...

Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien technology.

Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a ...