Mars exploration: NASA’s MAVEN spacecraft completes first deep dip campaign

20 febrero 2015

NASA’s Mars Atmosphere and Volatile Evolution has completed the first of five deep-dip maneuvers designed to gather measurements closer to the lower end of the Martian upper atmosphere.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/snZAFl9mYnc/150219211906.htm