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flag Astronomers discover rare Einstein ring, aiding tests of general relativity and mapping the universe.

flag Astronomers using the Euclid space telescope have discovered an Einstein ring, a rare phenomenon where gravity bends light from a distant galaxy into a ring shape. flag The ring surrounds a galaxy 500 million light years away, with the light coming from a galaxy 4.42 billion light years away. flag This discovery, published in Astronomy and Astrophysics, allows scientists to test Albert Einstein's theory of general relativity and aids the Euclid mission in creating a 3D map of the universe.

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