Image:EuropaInterior1.jpg
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| This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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| Description |
Model of Europa's subsurface structure. Original caption released with image: These artist's drawings depict two proposed models of the subsurface structure of the Jovian moon, Europa. Geologic features on the surface, imaged by the Solid State Imaging (SSI) system on NASA's Galileo spacecraft might be explained either by the existence of a warm, convecting ice layer, located several kilometers below a cold, brittle surface ice crust (top model), or by a layer of liquid water with a possible depth of more than 100 kilometers(bottom model). If a 100 kilometer (60 mile) deep ocean existed below a 15 kilometer (10 mile) thick Europan ice crust, it would be 10 times deeper than any ocean on Earth and would contain twice as much water as Earth's oceans and rivers combined. Unlike the Earth, magnesium sulfate might be a major salt component of Europa's water or ice, while the Earth's oceans are salty due to sodium chloride (common salt). While data from various instruments on the Galileo spacecraft indicate that an Europan ocean might exist, no conclusive proof has yet been found. To date Earth is the only known place in the solar system where large masses of liquid water are located close to a solid surface. Other sources are especially interesting since water is a key ingredient for the development of life as we know it. |
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| Source |
Transfered from en.wikipedia Transfer was stated to be made by User:Mu301.
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| Date |
2007-02-23 (first version); 2007-03-13 (last version) |
| Author |
Original uploader was Latitude0116 at en.wikipedia Later version(s) were uploaded by RP88 at en.wikipedia. |
| Permission (Reusing this image) |
PD-USGOV-NASA. |
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This image or video was catalogued by Jet Propulsion Lab of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA01669. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information. |
[edit] License information
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This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy).
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[edit] Original upload log
The original description page is/was here. All following user names refer to en.wikipedia.
- 2007-03-13 14:48 RP88 1192×1636×8 (174008 bytes) higher resolution
- 2007-02-23 23:24 Latitude0116 492×676×8 (42637 bytes) Diagram showing Europa's interior (source: [http://photojournal.jpl.nasa.gov/catalog/PIA01669]) {{NASA}}
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 02:13, 15 December 2007 | 1,192×1,636 (170 KB) | Mu301 | ({{Information |Description={{en|Model of Europa's subsurface structure.<br/> ==== Original caption released with image ==== These artist's drawings depict two proposed models of the subsurface structure of the Jovian moon, Europa. Geologic ) |
| 01:47, 15 December 2007 | 1,192×1,636 (170 KB) | Mu301 | (== Summary == {{Information | Description = Model of Europa's subsurface structure. | Source = NASA's [http://photojournal.jpl.nasa.gov/index.html Planetary Photojournal], PIA01669: * Source URL: http://photojournal.jpl.nasa.gov/jpe) |
