The End of the Cosmic Dawn: Settling a Two-Decade Debate - SciTechDaily

Astronomers determine the time when all the neutral hydrogen gas between galaxies produced by the Big Bang became fully ionized. A group of astronomers has robustly timed the end of the epoch of reionization of the neutral hydrogen gas to approximately 1.1 bi…

ByMax Planck Institute for AstronomyJuly 8, 2022 Schematic representation of the view into cosmic history provided by the bright light of distant quasars. Observing with a telescope (bottom left) al… [+13773 chars]

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