Illustration. Astronomers detected GRB 200826A because one of its jets happened to point almost directly toward Earth. The blast of radiation took 6.6 billion years – or 48% of the universe’s present age – to reach us.
Credit: NASA’s Goddard Space Flight Center/Chris Smith (KBRwyle)
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NASA’s Fermi Spots ’Fizzled’ Burst from Collapsing Star