File:Distant Galaxies ‘Lift the Veil’ on the End of the Cosmic Dark Ages (noao1703b).tiff

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Captions

Captions

Milestones in the history of the Universe (not to scale). The intergalactic gas was in a neutral state from about 300,000 years after the Big Bang until light from the first generation of stars and galaxies began to ionize it.

Summary[edit]

Description
English: Milestones in the history of the Universe (not to scale). The intergalactic gas was in a neutral state from about 300,000 years after the Big Bang until light from the first generation of stars and galaxies began to ionize it. The gas was completely ionized after 1 billion years. The LAGER study takes a close look at the state of the Universe at 800 million years (yellow box) to investigate when and how this transformation occurred.
Date 11 July 2017 (upload date)
Source Distant Galaxies ‘Lift the Veil’ on the End of the Cosmic Dark Ages
Author NAOJ
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current16:05, 23 October 2023Thumbnail for version as of 16:05, 23 October 20231,024 × 353 (299 KB)OptimusPrimeBot (talk | contribs)#Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/noao1703b.tif via Commons:Spacemedia

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