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Showing posts with label gravity maps Grail. Show all posts
Showing posts with label gravity maps Grail. Show all posts

Monday, December 17, 2012

Survey Ebb and Flow ready to crash into the moon tonight


Lunar investigate twins Ebb and Flow mission preparation gravity maps Grail NASA conducted before the weekend ignition engines, which finally defined by their fate. Run the engine to change the orbit leading to a pair of spacecraft. Now, moving to a new orbit, the twin probes sink lower and lower, closer to the surface of the moon, and tonight,