NGC 6357 is a nebula near NGC 6334 in the constellation Scorpius, given the name War and Peace Nebula by the Midcourse Space Experiment scientists because, in infrared images, the bright, western part resembles a dove, while the eastern part looks like a skull. Well, otaku stumbled on a pic of it and decided that it looks a whole lot like Madoka Magica's Ultimate Madoka.
[Image: http://img1.ak.crunchyroll.com/i/spire1/bf6a858cd30cdfbadc7c0e893f63eb0e1358702208_full.jpg]
[Image: http://img1.ak.crunchyroll.com/i/spire4/eb19a88cb31693f5aa5a57075e8bfdd51358702234_full.jpg]
[Image: http://img1.ak.crunchyroll.com/i/spire2/119bc1c8b40690a8fd4e4e5256e0bac11358702248_full.jpg]
From the Astromony Picture of the Day post on the photo
[Image: http://t1.gstatic.com/images?q=tbn:ANd9GcSubukzf4rAMHcCImS7xDtZ310mkp0XOqrD4tK33b6uMxcf7fJCerb3-d79yA]