Europa: world of ice, world of water - PowerPoint PPT Presentation

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Europa: world of ice, world of water

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Speculations on Europa of 4.5 Gyr ago. How do we find out? The Europa Astrobiology Lander. Earliest possible launch: 2035. Io ... world of rapid changes ... – PowerPoint PPT presentation

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Title: Europa: world of ice, world of water


1
Europa world of ice, world of water(?)
2
The Galileo spacecraft a much closer look
About 10 miles
3
Grooves and ridges on Europa
4
The grooves in color
5
Ice rafts on Europa key to a subsurface ocean
6
Speculations on interior structure of Europa
7
Speculations on Europa of 4.5 Gyr ago
8
How do we find out? The Europa Astrobiology
Lander
  • Earliest possible launch 2035

9
Io world of rapid changes
  • Distance from Jupiter 422 thousand kilometers,
    diameter 3640 km

10
Io
  • Comparisons between Voyager (late 70s) and
    Galileo (mid 90s) showed geographical changes on
    Io (see figure 14.11)

11
Changes on Io
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