NASA's Chief Scientist on the Vision for Space Exploration
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NASA's Jim Garvin comments on the agency's just announced plans for human exploration and new spacecraft. Also Lou Friedman, Q&A on craters throughout the solar system, and Bruce Betts with a new What's Up contest.Learn more about your ad choices. Visit megaphone.fm/adchoices See omnystudio.com/listener) for privacy information.

See omnystudio.com/listener) for privacy information.