Media from: Astronomers find a dark matter galaxy far, far away
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At the center of this infrared image is a massive red galaxy, 9.8 billion light-years from Earth, which acts like a cosmic magnifying glass, distorting the light from an even more distant galaxy, 17.3 billion light-years away. The result is a spectacular Einstein ring image of the background galaxy. The observations were made with the 10-meter Keck-11 Telescope on Mauna Kea, Hawaii.
Image: David Lagattuta/W. M. Keck Observatory
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