Program Archives

EASY COME, EASY GO: ASTRONOMER MIKE BROWN ON OUR EIGHT-PLANET SOLAR SYSTEM
August 28, 2006
Guests: Mike Brown
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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"...  more »

MIKE BROWN, DISCOVERER OF 2003 UB313...PLANET 10?
August 15, 2005
Guests: Mike Brown
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CalTech Planetary Astronomer Mike Brown and his colleagues have outdone themselves with discovery of what may be the solar system's tenth planet, far beyond Pluto. He talks with us about the recent...  more »

FAR OUT SEDNA
March 22, 2004
Guests: Mike Brown
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It's big, and it orbits farther from the sun than any solar system object yet discovered. CalTech's Mike Brown and his co-discoverers want to name it Sedna, after the Inuit goddess of the cold deeps....  more »