Distant Galaxies ‘Lift the Veil’ on the End of the Cosmic Dark Ages
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.
Credit:NAOJ
About the Image
Id: | noao1703b |
Type: | Artwork |
Release date: | July 11, 2017 |
Related releases: | noao1703 |
Size: | 1024 x 353 px |
About the Object
Category: | Cosmology Illustrations |