2015年5月8日 星期五

Mars Plans Advance (and Occasionally Fade)

In the last two months, there has been significant news about the European-Russian 2018 mission and about NASA’s 2020 rover. NASA also has announced that it would like to send a new orbiter to the Red Planet in the early 2020s.

from Planetary Society Blog http://ift.tt/1GUabID
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