Original file (2,666 × 2,000 pixels, file size: 528 KB, MIME type: image/jpeg)

Description
English: *Interior of Europa
  • original description: Cutaway view of the possible internal structure of Europa The surface of the satellite is a mosaic of images obtained in 1979 by NASA's Voyager spacecraft. The interior characteristics are inferred from gravity field and magnetic field measurements by NASA's Galileo spacecraft. Europa's radius is 1565 km, not too much smaller than our Moon's radius. Europa has a metallic (iron, nickel) core (shown in gray) drawn to the correct relative size. The core is surrounded by a rock shell (shown in brown). The rock layer of Europa (drawn to correct relative scale) is in turn surrounded by a shell of water in ice or liquid form (shown in blue and white and drawn to the correct relative scale). The surface layer of Europa is shown as white to indicate that it may differ from the underlying layers. Galileo images of Europa suggest that a liquid water ocean might now underlie a surface ice layer several to ten kilometers thick. However, this evidence is also consistent with the existence of a liquid water ocean in the past. It is not certain if there is a liquid water ocean on Europa at present.
Date
Source http://photojournal.jpl.nasa.gov/catalog/PIA01130
Author unknown author of the NASA
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Image extraction process This file has an extracted image: PIA01130 Interior of Europa (cropped).jpg.
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  • brighter surface
    brighter surface


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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18 December 1997

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current04:43, 27 June 2005Thumbnail for version as of 04:43, 27 June 20052,666 × 2,000 (528 KB)Bricktop

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