This X-ray/optical composite image of the large spiral galaxy NGC 2841 shows multimillion degree gas (blue/X-ray) rising above the disk of stars and cooler gas (gray/optical). - Credit: X-ray: NASA/CXC/U. Mass/Q.
A giant gas cloud spanning light years with a mass of 10 billion Suns inside the galaxy merger system NGC involving two spiral Milky Way-sized galaxies each containing a supermassive black hole in the center.
Clump of active galactic cores that stretch 4 billion light-years from end to end. The structure is a light quasar group (LQG), a collection of extremely luminous Galactic Nulcei powered by supermassive central black holes.
spaceplasma: “ “ NGC 7318 (also known as UGC 12100 or HCG are a pair of collidinggalaxies about 300 million light-years away in the Constellation Pegasus. They are members of the famous Stephan’s Quintet. NGC has two optical.
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