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Europe’s Euclid space telescope has detected a rare halo of bright light around a nearby galaxy. The halo, known as an Einstein ring, encircles a galaxy 590 million light-years away. That’s considered close by cosmic standards. Astronomers have known about this galaxy for more than a century and so were surprised when Euclid uncovered the bright glowing ring. They reported their discovery Monday. An Einstein ring is light from a much more distant galaxy that bends in such a way as to perfectly encircle a closer object.
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