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Browse Past ShowsProgram ArchivesBrowse by Subject: Extrasolar Planets
BILLIONS AND BILLIONS OF EARTHLIKE PLANETS?
April 21, 2008 Guests: Michael Meyer Select Format: MP3 Windows Media What if many or even most of the stars in our galaxy have rocky planets? Now there's evidence of just that from the team of scientists led by University of Arizona astronomer Michael Meyer. He... more »
ANALYZING ALIEN ATMOSPHERES
April 7, 2008 Guests: Mark Swain Select Format: MP3 Windows Media Mark Swain of the Jet Propulsion Laboratory leads the team that has found methane in the atmosphere of a planet orbiting another star. This is the first time an organic molecule has been found on an... more »
PLANETARY RADIO 5TH ANNIVERSARY SHOW: ASTRONOMER GEOFF MARCY ON DISCOVERY OF FIFTH PLANET IN STAR SYSTEM
November 26, 2007 Guests: Geoff Marcy Select Format: MP3 Windows Media 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 »
DEEP IMPACT RETURNS FOR AN INTERPLANETARY THREE-FOR-ONE
July 9, 2007 Guests: Mike A'Hearn Select Format: MP3 Windows Media Deep Impact wowed the world with its explosive investigation of a comet two years ago. Now the spacecraft has been given a new mission that combines two very different tasks. We talk with then and... more »
THE MOST EARTHLIKE EXTRASOLAR PLANET YET -- A CONVERSATION WITH CO-DISCOVERER STEPHANE UDRY
April 30, 2007 Guests: Stephane Udry Select Format: MP3 Windows Media Gliese 581c is just a bit bigger than Earth and orbits in the so-called habitable zone, where water could be liquid on its surface. You'll hear from Stephane Udry of the Geneva Observatory, one of... more »
CHECKING THE WEATHER FROM FORTY LIGHT YEARS AWAY!
February 5, 2007 Guests: Joe Harrington Select Format: MP3 Windows Media We're not just discovering lots of extrasolar planets, we're beginning to learn what these new worlds are like. Joe Harrington is part of a team that used the Spitzer Space Telescope to determine... more »
A PLANETARY POPULATION EXPLOSION? DAVA SOBEL HOPES SO
August 21, 2006 Guests: Dava Sobel Select Format: MP3 Windows Media 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 »
A PLANETARY SYSTEM THAT LOOKS LIKE HOME
June 19, 2006 Guests: Christophe Lovis Select Format: MP3 Windows Media Christophe Lovis of the Geneva Observatory led the team that recently found a three-planet system not far from our own. The third planet is in the so-called "habitable zone." He talks about the... more »
BY THE LIGHT OF A NEW WORLD
April 11, 2005 Guests: David Charbonneau Select Format: MP3 Windows Media Harvard astronomer David Charbonneau is lead author of a paper describing one of the first ever detections of light from a planet beyond our solar system. Emily Lakdawalla dishes up the Deep Space... more »
BILLIONS OF EARTHS?
September 6, 2004 Guests: Geoff Marcy Select Format: MP3 Windows Media 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 »
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