For decades, scientists have searched the skies for signs of extraterrestrial technology. A study from EPFL asks a sharp ...

Former US President Barack Obama says he has seen no evidence extra-terrestrials have made contact with Earth.

Thousands of alien species could invade the Arctic, warns a new study. Warmer temperatures and more tourists make it easier ...

In 2010, a famed ecologist, Robert May, asked a hypothetical question to the scientific community. If an alien spaceship landed on Earth, one of the first questions they would likely ask would be, how ...