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http://www.universetoday.com/?p=93997: Twin NASA Science Probes Start Lunar Gravity Mapping
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Direct link Twin NASA Science Probes Start Lunar Gravity Mapping

8 Mar 2012, 03:39 UTC NASA’s twin lunar orbiting GRAIL (Gravity Recovery and Interior Laboratory) spacecraft named Ebb and Flow have kicked off their science collection phase aimed at precisely mapping our Moon’s gravity field, interior composition and evolution, the science team informed Universe Today. “GRAIL’s science mapping phase officially began Tuesday (March 6) and we are collecting science data,” [...] Twin GRAIL Moon Probes Ebb and Flow Start Lunar Gravity Science Mission The twin GRAIL probes have just begun their science mission and will use a precision formation-flying technique to map Lunar Gravity, as depicted in this artist's rendering. Radio signals traveling between the two spacecraft provide scientists with exact measurements which will result in the most accurate gravity map of the moon ever made. Credit: NASA/JPL-CaltechNASA’s twin lunar orbiting GRAIL (Gravity Recovery and Interior Laboratory) spacecraft named Ebb and Flow have kicked off their science collection phase aimed at precisely mapping our Moon’s gravity field, interior composition and evolution, the science team informed Universe Today.“GRAIL’s science mapping phase officially began Tuesday (March 6) and we are collecting science data,” said Maria Zuber, GRAIL principal investigator of the Massachusetts Institute of Technology in Cambridge, to Universe Today.“It is impossible to overstate how thrilled and ...

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