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Since 2002, Planetary Radio has visited with a scientist, engineer, project manager, advocate, or writer who provides a unique perspective on the quest for knowledge about our Solar System and beyond. The full show archive is available for free.
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Kepler Begins Search for Other Earths
Bruce Banerdt provides a status report on Spirit and Opportunity. Bill Nye has something old and something new to talk about, and Bruce Betts returns from the Planetary Defense Conference in Spain with news of Near Earth Objects and other things in the night sky.
Exoplanet Finder Debra Fischer
Jim Bell and Bill Nye talk Spirit and Opportunity in celebration of 5 years on Mars. Emily Lakdawalla's Q&A looks forward to a Mars flyby by the Dawn spacecraft.
JPL's Rob Manning explores just a few of the challenges of landing a spacecraft on another planet. We also get a Phoenix mission update from Emily Lakdawalla, who says not everything is going well.
Billions and Billions of Earthlike Planets?
Steve Squyres gives us a status report on Spirit and Opportunity, and Bill Nye comments on the rings that appear to surround one of Saturn's small moons. Last week Emily Lakdawalla told us why objects in space are round, but this time her Q&A explains why they're not.
Analyzing Alien Atmospheres
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.
John Callas provides a status report on Spirit and Opportunity. Emily Lakdawalla is looking at brilliant Comet Holmes in her Q&A report, and Bruce Betts also makes room for Holmes in his What's Up! review of the night sky.
The Most Earthlike Extrasolar Planet Yet -- A Conversation With Co-Discoverer Stephane Udry
A Planetary System That Looks Like Home
Landing people on Mars will be hard, but JPL's Rob Manning and other engineers are working on solutions.
One Martian year of Spirit and Opportunity on Mars with Jim Bell, Cornell University; Q and A on a crusty moon; special trivia contest prize.
By the Light of a New World
As the incredibly successful Mars Exploration Rover mission continues, Planetary Radio talks with Spirit's manager about what is being accomplished. We also hear from the second pair of Student Astronauts.
We celebrate one (Earth) year of Mars Exploration Rovers on the red planet with Principal Investigator Steve Squyres and Project Manager Jim Erickson; Emily Lakdawalla goes where no spacecraft has gone before.
Billions of Earths?
Hunting for Extrasolar Planets
Steve Squyres and Phil Christensen discuss Opportunity's latest goal, Endeavour Crater; Emily Lakdawalla knows how to find a spacecraft sailing out beyond Pluto, and Bruce Betts has a lock on a couple of comets.