Astronomers have searched the skies for signs of extraterrestrial technology for decades. These searchers since 1960 have ...
Thousands of alien species could invade the Arctic, warns a new study. Warmer temperatures and more tourists make it easier ...
For decades, the moon was seen as a barren, bone-dry world with no atmosphere, no liquid water, no magnetic shield, and extreme swings in temperature. The idea that it could ever support life seemed ...