Certainly what involved in the Mars mission is a lot harder than lunar mission.
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送交者: 006 于 2014-09-25, 16:12:27:
回答: according to the mission objectives listed in Space.com 由 steven 于 2014-09-25, 15:54:43:
it is this part not sure which one is more advanced, as the lunar one is closer, however does a lot of maneuvers; while the Martian one, is far, but only orbits the planet as I understand?
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