The Hubble Space Telescope has made multiple observations of exoplanet WASP-121 b, also known as Tylos. The extreme ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

We asked Ridley Scott to pick one favorite shot from each of his movies, as well as one from any other film. The director of Alien, Blade Runner, Gladiator, Napoleon, and many, many others breaks down ...

Window-cleaning robots haven’t quite arrived, but if you’ve got enough very large windows, it could be worth it.