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#Echoes
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Hubble saw Multiple Light Echoes Reflecting off Rings of Dust From a Supernova E..
Nov 7, 2022, 9:28 PM
Tech
Scientists spot light behind a black hole for the first time
Aug 2, 2021, 12:13 PM
Science
X-rays can echo and bend around the back of supermassive black holes
Jul 31, 2021, 2:22 PM
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