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Planetary Radio

A Planetary Population Explosion? Dava Sobel Hopes So

Airdate: Monday, August 21, 2006
Running Time: 00:28:52
Listen: Windows Media | MP3

Do we now live in a solar system with twelve or many more official planets? Galileo's Daughter author Dava Sobel was the only non-scientist on the International Astronomical Union's Planet Definition Committee. She joins us to explain their recommendation. You'll also hear a poetic tribute to the new and improved solar system, along with Bruce Betts' thoughts, and a new space trivia contest. Q&A asks, why no movies from Mars?

Guests

• Dava Sobel, Author

Related Information

• 2003 UB313/Xena Discoverer Mike Brown on the IAU Planet Definition Decision
• Proposed Definition of "Planet" Shakes Up the Solar System
• Solar System v2.0 Poem
• The IAU Redefines "Planet"