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Science Mission Directorate Update
Columnist: Dr. James Green

Science Mission Directorate Update
25 May 2011

This presentation includes a brief look at the upcoming GRAIL lunar mission (show above), the Dawn mission to asteroid Vesta and dwarf planet Ceres, a Cassini discovery at Saturn's Enceladus and a little about the Mars Exploration Rover Opportunity, which continues its exploration marathon on the Red Planet.

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About: Dr. James Green
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Dr. Green is the Director of Planetary Science at NASA Headquarters. He views his job as the keeper of NASA's planetary program and the top advocate for that program to flourish and grow.
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Last Updated: 25 May 2011