this post was submitted on 10 Sep 2023
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Space

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Cover author: Michał Kałużny http://astrofotografia.pl/

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Billion-light-year-wide 'bubble of galaxies' discovered (phys.org)
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Astronomers have discovered the first "bubble of galaxies," an almost unimaginably huge cosmic structure thought to be a fossilized remnant from just after the Big Bang sitting in our galactic backyard.

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