File:EuropaInterior1.jpg — Wikipedia Republished // WIKI 2

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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.

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Summary

DescriptionEuropaInterior1.jpg	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.
Date	(Original text: 1999-01-18)
Source	Transferred from en.wikipedia to Commons. Transfer was stated to be made by User:Mu301. (Original text : NASA's Planetary Photojournal, PIA01669: Source URL: http://photojournal.jpl.nasa.gov/jpeg/PIA01669.jpg Source Page: http://photojournal.jpl.nasa.gov/catalog/PIA01669)
Author	NASA/JPL
Other versions	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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	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.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

Original upload log

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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}}

File history

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	Date/Time	Dimensions	User	Comment
current	19:23, 7 February 2019	1,192 × 1,636 (696 KB)	Kesäperuna	100% JPEG quality from full quality TIFF.
	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

File usage

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Ocean Worlds Exploration Program

Global file usage

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Usage on ar.wikipedia.org
- ماء سائل خارج الأرض
Usage on azb.wikipedia.org
- اوروپا (آی)
Usage on beta.wikiversity.org
- Rocks/Ice sheets/Europa
Usage on bg.wikipedia.org
- Европа (спътник)
- Океан
Usage on en.wikibooks.org
- Solar System/Jupiter
- Solar System/Print version
Usage on en.wikiversity.org
- User:Marshallsumter/Rocks/Ice sheets/Europa
- Liquids/Liquid objects/Europa
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- Agua extraterrestre
Usage on fa.wikipedia.org
- اروپا (قمر)
Usage on fr.wikipedia.org
- Europa Clipper
- Eau liquide dans l'Univers
- Europa Lander
Usage on hi.wikipedia.org
- यूरोपा (उपग्रह)
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- ماورائے ارض مائع پانی
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- 海洋世界探索计划
- Talk:海洋世界探索计划

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