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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Amy Mainzer Is Hunting Asteroids With NEOWISE

Take a spacecraft that can no longer survey the realm of galaxies and repurpose it to discover thousands of much nearer asteroids and comets. Put it to sleep for 2.5 years, then wake it up and start discovering even more! JPL’s Amy Mainzer is Principal Investigator for NEOWISE, the mission using this amazing space telescope.

10 Years A Roving: A.J.S. Rayl on the Mars Exploration Rovers

What a long, wonderful trip it has been for Spirit and Opportunity, the Mars Exploration Rovers. Planetary Society reporter A.J.S. Rayl has been writing about their adventure every month for ten years. She looks back on this week’s show.

Planetary Radio Live Celebrates the Launch of MAVEN

The successful launch of MAVEN was covered by Mat Kaplan, Bruce Betts and Emily Lakdawalla, with special, launch site reports from Jim Bell and Bill Nye.

Juno's Brief Home Visit on the Road to Jupiter

Juno Principal Investigator Scott Bolton reviews the spacecraft's Earth flyby and previews its long stay at our solar system's king of planets.

MAVEN Mars Mission's Bruce Jakosky

The Mars Atmosphere and Volatile Evolution Mission (MAVEN) orbiter leaves for the red planet in November of 2013. Bruce Jakosky of the University of Colorado Boulder is its Principal Investigator. Mat Kaplan sat down with Bruce at a recent MAVEN workshop.

NASA's Charlie Bolden Visits Earth Missions at JPL

Two missions are coming together in a high bay clean room at the Jet Propulsion Laboratory. SMAP and ISS RapidScat went on display for a visit by NASA Administrator Charles Bolden. Mat Kaplan and Emily Lakdawalla provide special coverage.

JPL and England Wave at Saturn

Hundreds came out on the JPL mall on Friday, July 19th to salute the Cassini spacecraft as it captured a rare image of Earth from the outer solar system. Among them were the mission Deputy Project Scientist, Scott Edgington, and the Cassini Program Manager, Earl Maize.

Landing On Mars With JPL's Matt Golombek

Join us at JPL for a conversation with Mars landing site selection leader Matt Golombek. Matt is also now Project Scientist for the Mars Exploration Rover program, and shares the great news from Opportunity about its latest discovery. Emily Lakdawalla presents a guest blog entry that features splendid images from Mars Express, while Bill Nye traces the convoluted ways of space science funding in Washington. Bruce Betts and Mat Kaplan are at a legendary Pasadena eatery for this week’s What’s Up. Cosmic hot dog, anyone?

Drill Baby Drill! On Mars

With the first use of its drill and delivery of samples to its internal instruments, Curiosity is now a fully-functioning science station on Mars. JPL Sampling System Scientist Luther Beegle provides an update.

PLANETARY RADIO LIVE: Special Curiosity Report Continues

Our fascinating, live conversation with Curiosity Project Manager Richard Cook and Project Scientist John Grotzinger continues. Richard and John are joined on stage by Bill Nye the Science Guy, Emily Lakdawalla and Mat Kaplan.

PLANETARY RADIO LIVE: Celebrating Rover Curiosity

The leaders of the Curiosity mission join Bill Nye, Emily Lakdawalla and host Mat Kaplan for a live conversation about the thrilling mission on Mars.

All Together Now! The News From Curiosity

Mars Science Laboratory Project Scientist John Grotzinger's fascinating comments at the December 3 press conference, followed by analysis from Emily Lakdawalla.

Approaching Pluto, and Learning About Uwingu From Alan Stern

New Horizons Principal Investigator Alan Stern returns with a Pluto mission update. He also introduces us to Uwingu.

Curiosity Finds a Martian Stream Bed and Endeavour Flies Home

Emily Lakdawalla reports on Curiosity's discovery of an ancient stream bed, and Endeavour flies over the California plant where it was built.

Remembering Neil Armstrong/ChemCam is Zapping Martian Rocks!

Emily Lakdawalla and Bill Nye the Science Guy join Mat Kaplan for a special remembrance of Neil Armstrong. Then we visit with the principal investigator for the first ray gun on Mars. Roger Wiens leads the ChemCam team that is using its powerful laser to zap and analyze Martian rocks. It’s just one of the Curiosity Rover success stories. Win a ChemCam bumper sticker and a Planetary Radio t-shirt in the weekly What’s Up space trivia contest!

More From Planetfest With Andrew Chaikin and Scott Hubbard

Our Planetary Radio Live celebration of Mars rover Curiosity at Planetfest continues with more from space historian Andrew Chaikin, former NASA Mars czar Scott Hubbard and Planetary Society CEO Bill Nye the Science Guy. Emily breaks the news about NASA’s choice for a Discovery mission, and Bruce Betts joins Mat Kaplan for a What’s Up look at the night sky and a new space trivia contest.

Cassini Project Scientist Linda Spilker With a Saturn Mission Update

Planetary Radio's most frequent guest returns with the latest news from the great ringed world, its moons, and its rings.

SETI Scientist Jill Tarter Continues the Search

The Director of the Center for SETI Research is thrilled to have the Allen Telescope Array back in the hunt for extraterrestrial intelligence. She also tells us about SETILive.

Voyager 1 at the Edge of the Solar System, With Ed Stone

Voyager 1 at the Edge of the Solar System, With Ed Stone

Mars Exploration Rover Project Manager John Callas

John Callas reports on Spirit and Opportunity, Bill Nye debates the future of humans on the Moon, and Bruce Betts looks to the Perseid meteor shower in his What's Up review of the night sky.

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