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Planetary Radio Episodes

For every week 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. We also showcase regular features that raise your space IQ while they put a smile on your face.

The Eagle Has Landed: Remembering Neil Armstrong

July 19, 2016 • 28:50

We celebrate the 47th anniversary of the first moon landing with the reprise of a conversation with author and NBC space reporter Jay Barbree about his trusted friend Neil Armstrong.

Juno Reaches Jupiter!

July 12, 2016 • 48:25

Return with us to the evening of July 4, 2016 and the exciting arrival at Jupiter of the Juno orbiter. You’ll hear the moment of successful orbital insertion. Several of the mission’s key contributors reveal how Juno accomplished this feat, along with what they hope the spacecraft will tell us about the giant planet.

Fighting for Space: Former NASA Deputy Administrator Lori Garver

July 05, 2016 • 38:08

She has spent most of her life working toward a bright future for humanity in space, and Lori Garver has lost none of her passion. She visited the Planetary Society for a wide-ranging conversation with Mat Kaplan.

Space Policy Edition #2: Why Juno? Why Jupiter? Why Now?

July 01, 2016 • 1:09:14

This month Jason Callahan, Casey Dreier and Mat Kaplan ask whether the Moon vs. Mars human destination debate makes sense, highlight a new report on the science potential of CubeSats by the National Academies, and explain how a thrilling planetary science mission like Juno gets a thumbs up from NASA.

Planetary Radio Extra: Shining a Million Watt Flashlight on an Asteroid

June 28, 2016 • 19:35

PlanRad’s celebration of Asteroid Day (June 30th) continues as we call UCLA grad student Adam Greenberg at the Arecibo Observatory in Puerto Rico.

Countdown to Jupiter

June 28, 2016 • 40:14

Juno will enter Jupiter orbit on July 4th. Mat Kaplan talks with the mission’s Principal Investigator, Scott Bolton at the Jet Propulsion Laboratory. Bill Nye helps prepare us for this exciting encounter and the science that will follow.

OSIRIS REx: Ready for a Voyage to Bennu

June 21, 2016 • 34:17

OSIRIS-REx will launch toward Near Earth Asteroid Bennu soon. In an early celebration of Asteroid Day, mission leader Dante Lauretta tells us how learning about asteroids may teach us about our own origins, and help us avoid a cataclysmic impact.

JunoCam, The People’s Jupiter Camera

June 14, 2016 • 31:46

The Juno spacecraft will enter orbit at Jupiter on July 4th. It carries a camera that will send back spectacular images from just above the swirling clouds of that mighty planet. Planetary scientist Candy Hansen will tell us how we can help decide what it will view.

Chris McKay, Larry Niven and Andy Weir at the Contact Conference

June 07, 2016 • 32:32

Space art and science fiction joined science fact at the 2016 Contact Conference in Sunnyvale, California. We talk with three well-known visionaries.

Space Policy Edition #1: How We Got Here: Human Spaceflight at the End of the Obama Era

June 03, 2016 • 1:08:00

In the premiere of this new monthly series we briefly examine the latest move by the House of Representatives in the game of NASA's budget and then discuss what Lockheed Martin's new "Mars Base Camp" proposal takes from The Society's Humans Orbiting Mars workshop. Our featured discussion takes a deep dive into the story of President Obama's impact on human spaceflight--how NASA ended up with a mixed program of commercial systems and big government programs.

Getting Humans to Mars

May 31, 2016 • 56:31

Three NASA leaders talk with host Mat Kaplan about the progress we're making toward leaving footprints on the Red Planet.

A Big Test for LightSail 2

May 24, 2016 • 29:57

The Planetary Society’s solar sail spacecraft was in the middle of a critical test as we spoke with the Society’s Bruce Betts and Jason Davis.

NASA’s Science Leader John Grunsfeld

May 17, 2016 • 28:50

John Grunsfeld closes our coverage of the Space Foundation’s 32nd annual Space Symposium in Colorado Springs. We also meet the leaders of the New Generation Space Leaders Program.

Dream Chaser: The Return of the Spaceplane

May 10, 2016 • 28:50

We’re back at Space Symposium for a conversation with SNC’s Mark Sirangelo, leader of that company’s effort to build the Dream Chaser. We’ll also hear a few moments of Bill Nye’s session at the annual gathering as he hosted Bernard Foing and Amy Mainzer.

At Space Symposium With the Leader of the European Space Agency

May 03, 2016 • 31:22

The annual Space Symposium in Colorado is a must-attend event for space leaders from around the world. Our coverage begins with United Arab Emirates Space Agency Director General Mohammed Nasser Al Ahbabi, and then moves to ESA Director General Jan Woerner and Chief Scientist Bernard Foing.

A Death Valley Conversation About Life, The Universe and Everything With Tyler Nordgren and Jill Tarter

April 26, 2016 • 1:11:38

Beautiful Death Valley National Park was the setting for a fascinating conversation with famed SETI researcher Jill Tarter and celebrated astronomer, artist and photographer Tyler Nordgren.

Exploring Europa and Mining Asteroids at Yuri’s Night

April 19, 2016 • 41:05

Our special coverage from the Los Angeles Yuri’s Night party continues with Chris Lewicki of Planetary Resources along with Bob Pappalardo and Boback “Mohawk Guy” Ferdowsi who are preparing an orbiter for Jupiter’s ocean world Europa.

Celebrating Yuri’s Night 2016 with Astronaut Samantha Cristoforetti

April 12, 2016 • 28:50

Happy Yuri’s Night! We’re partying under Space Shuttle Endeavour in the first of two shows featuring interviews from the worldwide celebration of space. Star Trek’s Robert Picardo will talk about his new video newsletter, the Planetary Post, and we’ll visit with Samantha Cristoforetti, who returned last June from 200 days aboard the International Space Station.

Michel Mayor, Discoverer of the First Extrasolar World

April 05, 2016 • 39:41

Michel Mayor and his team rocked the astronomy world with their 1995 announcement, but this modest man says it was a discovery whose time had come.

Ashwin Vasavada, Leader of Scientists Roving Mars

March 29, 2016 • 38:02

The new Mars Science Laboratory Project Scientist is not new to the mission. Ashwin Vasavada has worked on the Curiosity rover since 2004.

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