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Planetary Radio

Easy Come, Easy Go: Astronomer Mike Brown On Our Eight-Planet Solar System

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

CalTech's Mike Brown returns to Planetary Radio to talk about the International Astronomical Union's new definition of a planet, one that downgrades Pluto and some of Mike's discoveries to "dwarf" planets. Bruce Betts and Mat Kaplan also talk about our downsized solar system in this week's What's Up segment, including a new "themed" contest. Emily Lakdawalla's Q&A looks at the cameras on planetary spacecraft.

Guests

• Mike Brown, CalTech astronomer and discoverer of 2003 UB313 (Xena)

Related Information

• Mike Brown's Website
• Pluto Gets the Boot!
• Top Ten Reasons Pluto Is/Is Not A Planet