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Fil:EuropaInterior1.jpg

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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.
Dato


(Original text: 1999-01-18)
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Transferred from en.wikipedia to Commons. Transfer was stated to be made by User:Mu301.
(Original text : NASA's Planetary Photojournal, PIA01669:

Opphavsperson NASA/JPL
Andre versjoner Derivative works of this file:  EuropaInterior1 cs.jpg
This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA01669.

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Public domain 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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The original description page 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}}

Filhistorikk

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Dato/klokkeslettMiniatyrbildeDimensjonerBrukerKommentar
nåværende7. feb. 2019 kl. 21:23Miniatyrbilde av versjonen fra 7. feb. 2019 kl. 21:231 192 × 1 636 (696 KB)Kesäperuna100% JPEG quality from full quality TIFF.
15. des. 2007 kl. 04:13Miniatyrbilde av versjonen fra 15. des. 2007 kl. 04:131 192 × 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
15. des. 2007 kl. 03:47Miniatyrbilde av versjonen fra 15. des. 2007 kl. 03:471 192 × 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

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