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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.
Datum


(Original text: 1999-01-18)
Vir

Iz en.wikipedia v Zbirko. Transfer was stated to be made by User:Mu301.
(Original text : NASA's Planetary Photojournal, PIA01669:

Avtor NASA/JPL
Druge različice Izpeljana dela te datoteke:  EuropaInterior1 cs.jpg
To sliko ali ta video je katalogiziral Jet Propulsion Laboratory Nacionalne uprave za aeronavtiko in vesolje (NASA) Združenih držav Amerike pod oznako fotografije: PIA01669.

Ta predloga ne označuje avtorskopravnega stanja dela. Ob njej mora stati tudi običajna oznaka avtorskopravnega stanja gradiva. Glejte Commons:Navedba licence.
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Public domain Ta datoteka je v javni domeni, ker jo je izdelala izključno NASA. Avtorskopravna politika NASE pravi, da »Gradivo NASE ni zaščiteno z avtorskimi pravicami, razen če je rečeno drugače.« (glej Template:PD-USGov, stran z avtorskopravno politiko NASE ali Politiko uporabe slik JPL.)
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  • 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}}

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Datum in časSličicaVelikostUporabnikKomentar
trenutno21:23, 7. februar 2019Sličica za različico z datumom 21:23, 7. februar 20191.192 × 1.636 (696 KB)Kesäperuna100% JPEG quality from full quality TIFF.
04:13, 15. december 2007Sličica za različico z datumom 04:13, 15. december 20071.192 × 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
03:47, 15. december 2007Sličica za različico z datumom 03:47, 15. december 20071.192 × 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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