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Europa's Chaos Terrains

iPad story cover image: Giant lakes trapped in Europa's crust bust up this distant moon's icy surface.
Hard layers of ice make up the surface of Jupiter's frozen moon Europa. Glacial cracks and ridges scar its frigid white plains, carving paths across an icy shell that conceals a deep ocean of liquid water. Closer inspection of the moon's fractured topography reveals highly disrupted areas, called chaos terrains, where blocks of ice appear to have broken off, drifted and refrozen to the surface. Searching for an explanation of how these features formed, researchers studying images of Europa taken by NASA's Galileo spacecraft have come up with an answer. As plumes of warm ocean water rise to the subsurface, massive lakes develop inside the moon's crust—some larger than North America's Great Lakes combined. Over time, the ice directly above these lakes collapses, splintering into floating geometric fragments that rotate, raft and resettle into all kinds of chaotic configurations. Watch the video to learn more about Europa's chaos terrains.
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More information on this topic available at:
http://science.nasa.gov/science-news/science-at-nasa/2011/16nov_europa/

Giant lakes trapped in Europa's crust bust up this distant moon's icy surface.    Giant lakes trapped in Europa's crust bust up this distant moon's icy surface.

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Find out what Europa's chaos terrains could mean for the possibility of finding life deep within its chilly ocean.    Find out what Europa's chaos terrains could mean for the possibility of finding life deep within its chilly ocean.
Duration: 3.3 minutes
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An artist's interpretation of a subsurface lake formed inside Europa's crust due to a rising plume of warm ocean water.    An artist's interpretation of a subsurface lake formed inside Europa's crust due to a rising plume of warm ocean water.

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The Conamara Chaos, indicated with an arrow, is a well-known chaotic region on Europa.    The Conamara Chaos, indicated with an arrow, is a well-known chaotic region on Europa.

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Color Bar for previous image noted as: The Conamara Chaos, indicated with an arrow, is a well-known chaotic region on Europa.    Color Bar for previous image.

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A close-up view of the Conamara Chaos reveals jumbled blocks of ice that have refrozen to the surface.    A close-up view of the Conamara Chaos reveals jumbled blocks of ice that have refrozen to the surface.

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Short URL to This Page:http://svs.gsfc.nasa.gov/goto?11176
Animation Number:11176
Completed:2013-01-30
Producer:Tony Phillips (Wyle Information Systems)
Writer:Alex Kasprak (USRA)
Please give credit for this item to:
Science@NASA and NASA's Goddard Space Flight Center
Cover image courtesy of NASA/JPL/Ted Stryk
Video courtesy of Science@NASA
Illustration courtesy of Britney Schmidt/Dead Pixel VFX/Univ. of Texas at Austin
Conamara Chaos image courtesy of NASA/JPL/University of Arizona and NASA/ NSSDC Photo Gallery
Conamara Chaos close-up courtesy of NASA/JPL/University of Arizona
 
Keywords:
SVS >> iPad
NASA Science >> Planets and Moons
 
 


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Many of our multimedia items use the GCMD keywords. These keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0

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