Black Goo is a thick, sticky, tar-like substance with a mysterious and dubious background. It was originally introduced in Prometheus alongside the Engineers, an ancient race of aliens that were ...

In the 1982 blockbuster, E.T. the Extra–Terrestrial, E.T. is lured out of hiding using a trail of Reese's Pieces. But what would aliens really eat if they visited our planet? According to Professor ...