Going Behind the Scenes With LightSail 1

Drop in on the Critical Design Review for the Planetary Society's solar sail, with Bill Nye, Lou Friedman and many other participants. Bruce Betts and Mat Kaplan take you to the Crab Nebula for this week's space trivia contest and a What's Up tour of the night sky.

Related Links:

• LightSail--Solar Sailing
• Kepler Discovers Hundreds of New Planets
• Bill Nye Takes a Day Job
• LightSail-1 Passes Critical Design Review