File:Abell 851 (or CL 0939+4713).jpg

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DescriptionAbell 851 (or CL 0939+4713).jpg	English: This is a NASA/ESA Hubble Space Telescope image of a portion of a remote cluster of galaxies (CL 0939+4713) that existed when the universe was two-thirds of its present age (redshift z = 0.4). Hubble's high resolution allows astronomers to study, for the first time, the shapes of galaxies which existed long ago. The Space Telescope pictures are sharp enough to distinguish between various forms of spiral galaxies, as well as galaxies in collision, some tearing material from each other, some merging into single systems.
Date	1 December 1992, 06:00:00
Source	http://hubblesite.org/newscenter/archive/releases/1992/28/image/a/
Author	NASA/Hubble Space Telescope - Alan Dressier, Carnegie Institution

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	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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Image title	This is a NASA/ESA Hubble Space Telescope image of a portion of a remote cluster of galaxies (CL 0939+4713) that existed when the universe was two-thirds of its present age (redshift z = 0.4). Hubble's high resolution allows astronomers to study, for the first time, the shapes of galaxies which existed long ago. The Space Telescope pictures are sharp enough to distinguish between various forms of spiral galaxies, as well as galaxies in collision, some tearing material from each other, some merging into single systems.
Credit/Provider	Alan Dressier, Carnegie Institution, and NASA/ESA Co-investigators: Augustus Oemler (Yale Universfty), James E. Gunn (Princeton University), Harvey Butcher (the Netherlands Foundation for Research in Astronomy).
Source	ESA/Hubble
Short title	HST Photographs a Cluster of Galaxies Four Billion Light-years Away
Usage terms	Creative Commons Attribution 4.0 International License
Date and time of data generation	06:00, 1 December 1992
Keywords	CL 0939+4713
Contact information	http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany
IIM version	4

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