Start / Planetary Radio: Space Exploration, Astronomy and Science / Celebrating carl sagan and a new solar sail with ann druyan

Planetary Radio: Space Exploration, Astronomy and Science

Celebrating Carl Sagan and a New Solar Sail With Ann Druyan

29 min • 9 november 2009

Solar sailing returns with LightSail, announced on the 75th anniversary of Carl Sagan's birth.Learn more about your ad choices. Visit megaphone.fm/adchoices

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