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The Hubble Space Telescope

Oct. 16, 2009, 11:21 p.m.
Elliptical Galaxy NGC 1132

Photo: NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration

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Elliptical Galaxy NGC 1132

This galaxy is dubbed a fossil galaxy because it was probably caused by many galaxies colliding with each other until there was only a large fuzzy elliptical galaxy left. Scientists have found many oddities when studying NGC 1132. For one, the galaxy sits inside a ring of dark matter that could potentially surrounds hundreds of galaxies. Also, there's an X-ray glow that stretches 10 times beyond the radius of visible light seen in this image.