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Columnist: Dr. James  Green
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January 2012
Solar System Exploration at 50!
Letter C against green background  Solar System Exploration at 50!
15 January 2012
The NASA History Program Office, the Division of Space History at the National Air and Space Museum, the NASA Planetary Science Division, and the Jet Propulsion Laboratory invite papers relating to the history of planetary exploration.
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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: 18 Apr 2013