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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Celebrate the Mars Rovers With Jim Bell

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.

Landing on Mars: How Hard Can It Be?

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.

A Mars Rover Update From Steve Squyres

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.

Mars Exploration Rover Program Manager John Callas

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.

A Visit With Spirit Mission Manager Mark Adler

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.

A Year of Roving Across Mars

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.

Opportunity Reaches Endurance Crater on Mars

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.

Magnets Roving on Mars

This week we hear about the strategically located magnets on the Mars Exploration Rovers and how are telling us more about the red planet.

Celebrate With The Mars Exploration Rover Team

With lots to celebrate, The Planetary Society threw a party for the scientists and engineers who have made Spirit and Opportunity such amazing successes, and you're invited!

Jim Bell, The Pancam Man!

Planetary Radio talks with the developer of the Pancam on the Mars Exploration Rovers, Jim Bell. We also feature the last pair of Student Astronauts, and another visit with Astrobots Biff Starling and Sandy Moondust.

The Astrobots are Back on Our Show!

After a long hiatus, Biff Starling and Sandy Moondust return to the air. You'll also hear from Mars Exploration Rover Entry, Descent and Landing Chief Engineer Wayne Lee, and from two more of the Student Astronauts.

Mars Exploration Rover Flight Director Chris Lewicki

Opportunity is on a roll and Spirit is almost back to full health as we visit with the young Flight Director for the mission. We also hear from two more of the Student Astronauts.

Spirit Lands on Mars!

Follow the incredibly exciting and finally triumphant arrival on Mars of the Mars Exploration Rover as it happened at Wild About Mars, the Planetary Society's big weekend event at the Pasadena Convention Center.

Steve Squyres Is Ready for Mars

Doctor Steven Squyres talks about the challenges, human and robotic, facing the Mars Exploration Rover mission; Emily Lakdawalla is watching for shooting stars...on Mars, and Bruce Betts and Mat Kaplan attend the Planetary Society's holiday party.

Mars Exploration Rover Update

Planetary Radio gets a Mars Exploration Rover status report from Deputy Project Scientist, Dr. Albert Haldemann; Emily Lakdawalla can tell how old a planet is from its surface.

Getting a Rover's-Eye View of Mars

Hear excerpts of the Mars Exploration Rover imaging team lead Jim Bell's presentation last week at Planetary Society headquarters; Emily looks for life on the moon, while Bruce Betts says to get ready for this week's lunar eclipse!

Return to Mars: Two Rover Landing Sites Chosen

Matt Golombek tells us about the Mars Exploration Rover landing site selection process and the exciting destinations just chosen. What objects hold the solar system's speed record? We'll find out from Emily.

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