If you’ve ever wondered what areas of Earth resemble other planets, look no further than The Catalogue of Planetary Analogues, which lists sites on Earth that resemble locations on other celestial bodies. At these sites NASA and ESA can test out new rovers or equipment in otherworldly conditions right here at home. Where are some cool places they test? How about an island located north of Norway or the Atacama Desert, which is a good place to see what kinds of surfaces a rover can cross. Some of the more hostile sites that contain extremophiles can help astrobiologists prepare for how to scour other planets for life. They say the catalogue is a work in progress.