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Onset of Cosmic Reionization: Evidence of an Ionized Bubble Merely 680 Myr after the Big Bang

8 Apr 2020, 16:00 UTC
Onset of Cosmic Reionization: Evidence of an Ionized Bubble Merely 680 Myr after the Big Bang
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V. Tilvi et al 2020 ApJL 891 L10
Overlapping bubbles of ionized intergalactic medium have been found surrounding a group of two or three galaxies that lie at a spectroscopically confirmed redshift of z = 7.7, just 680 million years after the Big Bang.

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