File:Galaxy Cluster ZwCl 0024+1652 and Dark Matter Map.jpg
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Summary[edit]
| Description |
English: This Hubble Space Telescope composite image shows a ghostly "ring" of dark matter in the galaxy cluster ZwCl0024+1652. The ring-like structure is evident in the blue map of the cluster's dark matter distribution.
The map is superimposed on a Hubble image of the cluster. The ring is one of the strongest pieces of evidence to date for the existence of dark matter, an unknown substance that pervades the universe. The map was derived from Hubble observations of how the gravity of the cluster ZwCl0024+1652 distorts the light of more distant galaxies, an optical illusion called gravitational lensing. Although astronomers cannot see dark matter, they can infer its existence by mapping the distorted shapes of the background galaxies. The mapping also shows how dark matter is distributed in the cluster. Astronomers suggest that the dark-matter ring was produced from a collision between two gigantic clusters. For more information, visit: hubblesite.org/news_release/news/2007-17 Credit: NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University) |
| Date | |
| Source | https://www.flickr.com/photos/144614754@N02/46742367761/ |
| Author | NASA Hubble |
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This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/46742367761 (archive). It was reviewed on 26 February 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 21:26, 26 February 2020 | | 3,921 × 3,921 (2.07 MB) | Killarnee (talk | contribs) | User created page with UploadWizard |
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