The Omega Centauri globular cluster in the constellation of Centaurus. At a distance of 17090 light-years, this is the largest and most massive known globular cluster in the Milky Way.
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C 443 is a supernova remnant located in the constellation Gemini. It is believed to have originated from a supernova that exploded sometime between 3000 and 30,000 years ago, and that t...