People who believe they've been abducted by aliens have always resided at the farthest fringes of science, and the recent claim by a UFO cult known as the Raelians that they had cloned a human being ...

Astrophysicist Neil deGrasse Tyson has released a new book examining how humanity might react to first contact with extraterrestrial life. Mixing science, humour and pop-culture references, the book ...