If there's a story that refuses to die, it's the one about aliens. Recently it was given another kick along by the release of NASA's report on "Unidentified Anomalous Phenomena" (UAPs, formerly "UFOs") .
Inevitably this became associated with extraterrestrial life - or, as many people would say, "aliens".
In their report, NASA says "... there is no reason to conclude that existing UAP reports have an extraterrestrial source."
