File:Hot Dark Matter.tif
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Summary
editDescriptionHot Dark Matter.tif |
English: X-ray image taken by ROSAT shows confined hot gas highlighted that provide clear evidence that the gravity exerted in groups and clusters of galaxies exceeds all of the individual component galaxies combined. the extra gravity is attributed to dark matter. |
Date | |
Source | http://heasarc.gsfc.nasa.gov/docs/rosat/gallery/display/darkmatter.html |
Author | NASA |
Licensing
editPublic domainPublic domainfalsefalse |
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.) | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:48, 9 May 2013 | 2,400 × 1,890 (1.73 MB) | Azitony (talk | contribs) | User created page with UploadWizard |
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Width | 2,400 px |
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Height | 1,890 px |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 2 |
Horizontal resolution | 118.11024 dpc |
Vertical resolution | 118.11024 dpc |