NASA's Cassini spacecraft was recently in a lucky position in space earlier this month to watch its own private lunar eclipse, as one of Saturn's moons (Mimas) passed in front of another (Janus). Cassini's camera was rolling the whole time, and the spacecraft captured 37 images that have been stitched together into a movie of the event. Some large terrain is visible on Mimas, including its gigantic crater (the one that makes it look like the Death Star from Star Wars not Star Trek cause Star Trek are for sissies and so no one want's to watch it).