![Jason Major on Twitter: "A close look at Mimas' 86-mile (139-km) wide Herschel crater, captured by Cassini on November 19, 2016. https://t.co/b3SJxjQwl5" / Twitter Jason Major on Twitter: "A close look at Mimas' 86-mile (139-km) wide Herschel crater, captured by Cassini on November 19, 2016. https://t.co/b3SJxjQwl5" / Twitter](https://pbs.twimg.com/media/EnOMhPGWMAkpBoW.jpg:large)
Jason Major on Twitter: "A close look at Mimas' 86-mile (139-km) wide Herschel crater, captured by Cassini on November 19, 2016. https://t.co/b3SJxjQwl5" / Twitter
Earth Shaker - MIMAS: Solar System's "Death Star" A long time ago (Sept. 17, 1789), in a planet (Saturn) far, far away, William Herschel discovered one of Saturn's moons, Mimas. It is
![Brian T. Jacobs on Twitter: "While the Herschel crater on Mimas almost swallows up Massachusetts #deathstar https://t.co/Gsn6gWktXY" / Twitter Brian T. Jacobs on Twitter: "While the Herschel crater on Mimas almost swallows up Massachusetts #deathstar https://t.co/Gsn6gWktXY" / Twitter](https://pbs.twimg.com/media/D_Cavx5WwAM-KrH.jpg:large)
Brian T. Jacobs on Twitter: "While the Herschel crater on Mimas almost swallows up Massachusetts #deathstar https://t.co/Gsn6gWktXY" / Twitter
![natural satellites - Why is there a mountain inside the Herschel crater on Mimas? - Astronomy Stack Exchange natural satellites - Why is there a mountain inside the Herschel crater on Mimas? - Astronomy Stack Exchange](https://i.stack.imgur.com/RmKzv.jpg)