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Via +Barbara Cohen, a long but highly plausible analysis of the decision-making process behind the recently announced 2020 rover. 
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tim hem's profile photoScott Maxwell's profile photoMark Maimone's profile photo
tim hem
 
a lot of people will be upset at Europa missing out.
Personally I think Mars is the right target for now
 
+tim hem I wouldn't mind piloting a submarine around Europa, though. Just saying. :-)
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