Tasting a Super-Earth's Atmosphere

NASA Sagan Fellow and astronomer Jacob Bean led a team that has characterized the atmosphere of a super-Earth for the first time. He talks with us about this trailblazing work. Bill Nye commemorates the loss of Apollo 1, Challenger, and Columbia. Bruce Betts and Mat Kaplan are in near-perfect harmony that's almost as good as the barbershop quartet that joins them for What's Up and a new space trivia contest.

Related Links:

• Characterizing the Atmosphere of GJ 1214b
• Uranus and Challenger
• Farewell Self-Portrait From Japanese Solar Sail IKAROS
• Stardust Captures First Images of Comet Tempel 1
• Bill Nye's Your Place in Space (MP3)