Program Archives

NEW HORIZONS AT JUPITER: A REPORT FROM ALAN STERN
May 28, 2007
Guests: Alan Stern
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He may now be an Associate Administrator at NASA, but he's still Principal Investigator for humankind's first trip to Pluto. Alan Stern provides a triumphant report on the recent flyby of Jupiter...  more »

TRIUMPH AT JUPITER!
March 5, 2007
Guests: Alan Stern, John Spencer
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Special coverage of the successful New Horizons encounter with Jupiter and its moons. The Planetary Society's Bruce Betts traveled to the Applied Physics Lab where a team of scientists and engineers...  more »

ALAN STERN AS NEW HORIZONS REACHES JUPITER
February 26, 2007
Guests: Alan Stern, Cheryl Wheeler
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Two very different encounters with Jupiter this week. First up is Alan Stern, Principal Investigator for the New Horizons mission, with an update on this week's flyby. Then a special visit with...  more »

NEW HORIZONS APPROACHES JUPITER!
January 29, 2007
Guests: John Spencer
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John Spencer returns to preview New Horizons' upcoming encounter with the Jovian system, now less than a month away. John is Deputy Leader of the Jupiter Encounter Science Team. Why does comet...  more »

BRIAN MARSDEN SAYS EIGHT (PLANETS) IS ENOUGH
September 25, 2006
Guests: Brian Marsden
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Brian Marsden has just retired as Director of the International Astronomical Union's (IAU's) Minor Planet Center, where discoveries about comets, asteroids, and other bodies are reported and...  more »

PROTESTING THE IAU PLANET DEFINITION AND A SMART-1 LUNAR IMPACT RECAP
September 11, 2006
Guests: Mark Sykes, Detlef Koschny
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We have a busy show -- Mark Sykes, Director of the Planetary Science Institute, talks about his petition to the International Astronomical Union protesting its planet definition. And we look back a...  more »

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 »

A PLANETARY POPULATION EXPLOSION? DAVA SOBEL HOPES SO
August 21, 2006
Guests: Dava Sobel
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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...  more »

THE MANY MISSIONS OF JPL'S KEVIN BAINES
May 22, 2006
Guests: Kevin Baines
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Kevin Baines of the Jet Propulsion Laboratory has a piece of the action in more interplanetary missions than most planetary scientists. We talk with him about Venus Express, Cassini, New Horizons,...  more »

ON THE WAY TO PLUTO WITH NEW HORIZONS PRINCIPAL INVESTIGATOR ALAN STERN
February 20, 2006
Guests: Alan Stern
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Principal Investigator Alan Stern returns for the first time since launch of New Horizons toward Jupiter, Pluto and beyond.  more »