Mat Kaplan & Ann Druyan , Planetary Radio: Space Exploration, Astronomy and Science

Celebrating Carl Sagan and a New Solar Sail With Ann Druyan

09 Nov 2009 • 28 min • EN

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 See omnystudio.com/listener for privacy information. See omnystudio.com/listener for privacy information.

From "Planetary Radio: Space Exploration, Astronomy and Science"