Program Archives

PLANETARY RADIO 5TH ANNIVERSARY SHOW: ASTRONOMER GEOFF MARCY ON DISCOVERY OF FIFTH PLANET IN STAR SYSTEM
November 26, 2007
Guests: Geoff Marcy
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We celebrate our 5th anniversary by learning about discovery of a five-planet star system, the largest found so far. Q&A on Jupiter's red spot.  more »

BILLIONS OF EARTHS?
September 6, 2004
Guests: Geoff Marcy
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Professional planet hunter Geoff Marcy of UC Berkeley returns to share astounding news of newly-discovered Extrasolar Planets that are much closer in size to our Earth. Meteors, meteoroids and...  more »

HUNTING FOR EXTRASOLAR PLANETS
May 31, 2004
Guests: Geoff Marcy
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UC Berkeley astronomer Geoff Marcy and his team have discovered more planets outside our solar system than anyone else. We talk to him as he continues the search from the Keck telescope on Hawaii....  more »