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Webb Reveals Early-Universe Prequel to Huge Galaxy Cluster

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April 24, 2023 10:00AM (EDT)Release ID: 2023-118
Telescope image with infographic overlays. Wide view of many galaxies colored orange, red and white. Most white galaxies have a hazy halo. A grouping of larger white galaxies appears below center. In the top half of the image, five small white squares highlight galaxies that would not stand out otherwise.

Summary

Protocluster Confirmed, 650 Million Years after the Big Bang

How did we get here? This fundamental question may be applied on its grandest scale in cosmology, which investigates the history and origin of the universe. Astronomers are able to investigate the early universe and its development like never before with NASA’s James Webb Space Telescope, including the first galaxies. 

The powerful telescope’s latest findings are the first to spectroscopically confirm distances for a young protocluster of galaxies just 650 million years after the big bang. Astronomers think the protocluster represents the earliest stages of what will develop into a massive conglomeration like the Coma Cluster, which includes thousands of gravitationally bound member galaxies.

Full Article

Every giant was once a baby, though you may never have seen them at that stage of their development. NASA’s James Webb Space Telescope has begun to shed light on formative years in the history of the universe that have thus far been beyond reach: the formation and assembly of galaxies. For the first time, a protocluster of seven galaxies has been confirmed at a distance that astronomers refer to as redshift 7.9, or a mere 650 million years after the big bang. Based on the data collected, astronomers calculated the nascent cluster’s future development, finding that it will likely grow ...

Read More on NASA.gov

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News releases highlighting the discoveries of NASA’s James Webb Space Telescope are produced for NASA by the Space Telescope Science Institute (STScI) in Baltimore, Maryland, under NASA Contract NAS5-03127. News release content is developed by the News Team in STScI’s Office of Public Outreach.

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