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Hubble Frontier Field Abell 2744 This long-exposure Hubble Space Telescope image of massive galaxy cluster Abell 2744 (foreground) is the deepest ever made of any cluster of galaxies. It shows some of the faintest and youngest galaxies ever detected in space. The immense gravity in Abell 2744 is being used as a lens to warp space and brighten and magnify images of more distant background galaxies. The more distant galaxies appear as they did longer than 12 billion years ago not long after the big bang. The Hubble exposure reveals almost 3000 of these background galaxies interleaved with images of hundreds of foreground galaxies in the cluster. Their images not only appear brighter but also smeared stretched and duplicated across the field. Because of the gravitational lensing phenomenon the background galaxies are magnified to appear as much as 10 to 20 times larger than they would normally appear. Furthermore the faintest of these highly magnified objects is 10 to 20 times fainter than any galaxy observed pr about feed OPEN

InterImmCenter avatar InterImmCenter commented on August 11, 2024
Hubble Frontier Field Abell 2744 This long-exposure Hubble Space Telescope image of massive galaxy cluster Abell 2744 (foreground) is the deepest ever made of any cluster of galaxies. It shows some of the faintest and youngest galaxies ever detected in space. The immense gravity in Abell 2744 is being used as a lens to warp space and brighten and magnify images of more distant background galaxies. The more distant galaxies appear as they did longer than 12 billion years ago not long after the big bang. The Hubble exposure reveals almost 3000 of these background galaxies interleaved with images of hundreds of foreground galaxies in the cluster. Their images not only appear brighter but also smeared stretched and duplicated across the field. Because of the gravitational lensing phenomenon the background galaxies are magnified to appear as much as 10 to 20 times larger than they would normally appear. Furthermore the faintest of these highly magnified objects is 10 to 20 times fainter than any galaxy observed pr

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