File:Abell’s richest cluster (38110232482).jpg
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[edit]DescriptionAbell’s richest cluster (38110232482).jpg |
The Universe contains some truly massive objects. Although we are still unsure how such gigantic things come to be, the current leading theory is known as hierarchical clustering, whereby small clumps of matter collide and merge to grow ever larger. The 14-billion-year history of the Universe has seen the formation of some enormous cosmic structures, including galaxy groups, clusters, and superclusters — the largest known structures in the cosmos! This particular cluster is called Abell 665. It was named after its discoverer, George O. Abell, who included it in his seminal 1958 cluster catalogue. Abell 665 is located in the well-known northern constellation of Ursa Major (The Great Bear). This incredible image combines visible and infrared light gathered by the NASA/ESA Hubble Space Telescope using two of its cameras: the Advanced Camera for Surveys and the Wide Field Camera 3. Abell 665 is the only galaxy cluster in Abell’s entire catalogue to be given a richness class of 5, indicating that the cluster contains at least 300 individual galaxies. Because of this richness, the cluster has been studied extensively at all wavelengths, resulting in a number of fascinating discoveries — among other research, Abell 665 has been found to host a giant radio halo, powerful shockwaves, and has been used to calculate an updated value for the Hubble constant (a measure of how fast the Universe is expanding). |
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Source | Abell’s richest cluster |
Author | NASA Hubble Space Telescope |
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[edit]ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/38110232482 (archive). It was reviewed on 13 July 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
13 July 2018
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current | 15:31, 13 July 2018 | 1,041 × 1,034 (94 KB) | Hiàn (alt) (talk | contribs) | Transferred from Flickr via #flickr2commons |
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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Credit/Provider | ESA/Hubble & NASA |
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Source | ESA/Hubble |
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Date and time of data generation | 06:00, 30 October 2017 |
Software used | Adobe Photoshop CC 2015 (Windows) |
File change date and time | 14:34, 9 June 2017 |
Date and time of digitizing | 23:16, 12 January 2017 |
Date metadata was last modified | 16:34, 9 June 2017 |
Unique ID of original document | xmp.did:aff64756-1f84-c241-85b9-411d78945c92 |
Keywords | Abell 665 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |