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Hubble captures extremely remote galaxy cluster

16 Apr 2018, 18:42 UTC
Hubble captures extremely remote galaxy cluster
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This composite image from the Hubble Space Telescope’s Advanced Camera for Surveys and its Wide Field Camera 3 shows a huge cluster of galaxies some six billion light years away known as PSZ23 G138.61-10.84. The image is from an observing programme called the Reionization Lensing Cluster Survey, or RELICS. The RELICS project has studied 41 galaxy clusters to help locate the brightest distant galaxies for follow-on observations by the James Webb Space Telescope, scheduled for launch in 2020.
A galaxy cluster seen by the Hubble Space Telescope at a distance of about six billion lightyears. Image: ESA/Hubble & NASA, RELICS

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