40
Where is the water today?
•
Much may have escaped to space
•
Some is locked up in N Polar Cap
•
Much
could
be stored in subsurface ice (permafrost)
•
•
Mars Missions making progress this semester:
•
http://www.nasa.gov/vision/universe/solarsystem/mer_main.html
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•
Location of water critical to knowing where to
search for possible past life