The Rock Pool Project in Plymouth says the non-native sea hare looks "alien-like".

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 ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory claims, but a comet.

Alien abductions have been rumoured to occur for decades, and now a study has claimed that extraterrestrial beings have been using this method to insert genes into human DNA. The study, which has yet ...

For centuries, humans have gazed at the stars and wondered whether we are alone in the universe. The question of extraterrestrial life is one of science, philosophy, and pop culture's most enduring ...