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An Einstein ring is created when light from a galaxy or star passes by a massive object en route to the Earth. "Smiley" image of galaxy cluster (SDSS J1038+4849) & gravitational lensing (an Einstein ring) (HST).
| Credit: NASA / ESA |
An Einstein ring is created when light from a galaxy or star passes by a massive object en route to the Earth. "Smiley" image of galaxy cluster (SDSS J1038+4849) & gravitational lensing (an Einstein ring) (HST).