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gravitational lensing

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A natural close-up of a pierced galaxy 18 billion light-years away

Einstein's general theory of relativity predicted that gravity not only acts between two masses but also affects light which has no mass. We cannot see this effect in everyday life, but when light travels over vast intergalactic distances and is affected by the incredibly large... click to read more

  • T. Emil Rivera-Thorsen | Postdoctoral Research Fellow at Department of Astronomy, Oskar Klein Center, Stockholm University, Stockolm, Sweden
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Reading time 3.5 min
published on Oct 1, 2020