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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.

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Space Policy Edition: Why Apollo Ended (with John Logsdon)

September 06, 2019 • 1:09:14

As NASA struggles to return humans to the Moon by 2024, it's worth asking: why did it stop in the first place? Space historian John Logsdon joins the show to discuss the politics behind the decision to abandon the Moon in 1972. Casey and Mat also discuss the proposal to offer a $2 billion prize for sending humans back to the Moon and establishing a base there, and why that's not good public policy.

NASA’s Red Planet Rick and Putting Humans on Mars

August 21, 2019 • 64:20

Rick Davis is the perfect person to co-lead NASA’s Mars Human Landing Sites Study. No one is more devoted to putting human bootprints on the Red Planet. He returns to Planetary Radio for this inspiring and informative conversation about our progress. Bruce Betts leads off What’s Up with another brief LightSail 2 update. The Planetary Society’s solar sailing cubesat continues to raise its orbit.

Reflections of Humanity in a Spacesuit for Moonwalkers

August 14, 2019 • 67:40

Host Mat Kaplan in a long and fascinating conversation with Nicholas de Monchaux, author of Spacesuit: Fashioning Apollo. This great book is about much more than creation of the suits that allowed humans to walk and work on the Moon. Jason Davis shares pointers on looking for LightSail 2 overhead, while Bruce Betts provides a solar sail update in this week’s What’s Up. And you might win a Planetary Radio t-shirt!

Space Policy Edition: The Home Front During Apollo (with Emily Margolis)

August 02, 2019 • 83:25

Did the public support Project Apollo? Dr. Emily Margolis joins the show to explore the domestic politics and cultural impact of the space age throughout the 1960s. Despite the success of the lunar landings, there was more opposition to Apollo than we generally remember.

Apollo 11 and the Woman Who Helped Get It Home

July 17, 2019 • 55:27

Poppy Northcutt was a pioneer—the first woman to work as an engineer in Apollo Mission Control. The program she helped to create got the astronauts back to Earth. Fifty years later, she sits down with Mat Kaplan for a look back.

Space Policy Edition: Why Apollo Happened (with Roger Launius)

July 05, 2019 • 2:03:54

Space historian Dr. Roger Launius joins the show to explain why Apollo happened the way it did, how a moonshot briefly became a solution to a national security problem, and why it is unlikely to happen again.

Sharing a Passion for Mars at the Humans to Mars Summit

May 29, 2019 • 55:13

This year’s Humans to Mars Summit in Washington D.C., once again ended with a panel of Martian all-stars talking about their hopes for a future that includes the Red Planet. Planetary Radio host Mat Kaplan leads the inspiring and entertaining discussion.

Space Policy Edition: T-minus Five Years and Counting

April 05, 2019

Can NASA return astronauts to the Moon by 2024? Vice President Mike Pence shocked the space community by announcing this ambitious new goal just weeks after the Trump Administration proposed a half-billion dollar cut to the space agency.

Bill Nye and Planetary Radio Live at Extreme STEAM

March 20, 2019 • 70:23

Planetary Radio Live goes on stage at the first ever Fairplex Extreme STEA2M Festival in Pomona, California. Host Mat Kaplan and Planetary Society CEO Bill Nye are joined by four young space scientists and engineers in front of hundreds of families.

Boosters, Breakthroughs and Budgets: Canada and the US Look Toward Space

March 13, 2019 • 35:14

The last few days have seen developments that will shape the space exploration plans of Canada and the USA. The Planetary Society’s Kate Howells is a member of Canada’s Space Advisory Board. She reviews the nation’s new space policy.

Space Policy Edition: When a (Space) Cowboy Came to Washington

February 28, 2019 • 89:57

Historian John Logsdon discusses his new book, Ronald Reagan and the Space Frontier It explores the legacy of the 40th president’s major space policy decisions. We look at four major topics: early efforts at commercializing space, the survival crisis for planetary exploration, the Space Shuttle, and the decision to build the space station.

Earthrise! Celebrating the 50th Anniversary of Apollo 8

December 19, 2018 • 50:52

This is the 50th anniversary of the most audacious space mission in history. Apollo 8 blazed a path for the first moon landing seven months later, and gave a troubled nation reason for hope and pride.

Space Policy Edition: Canada's Uncertain Future in Space (with Kate Howells)

December 07, 2018 • 67:56

Canada was the third country in history to launch a satellite into space, but now lags in its space ambitions, capability, and spending. What happened?

Moon Mission 3D from Queen Guitarist Brian May and David Eicher

November 14, 2018 • 35:13

You haven’t seen the best pictures from the Apollo era and other great space achievements till you’ve seen them in 3D. Queen guitarist and astrophysicist Brian May is also mad about stereoscopic imagery.

Space Policy Edition: How NASA Came to Be

October 05, 2018 • 69:26.39

Happy 60th, NASA. In celebration of the space agency’s birthday, we do the audio equivalent of pulling out NASA’s baby book and explore its origin story.

John Logsdon and the Dawn of the Space Age

October 03, 2018 • 48:48

The Dean of space policy, John Logsdon, returns with stories and a new book of original documents that shaped the US space program from the birth of NASA to SpaceX. Planetary Society CEO Bill Nye reports in from this year’s International Astronautical Congress in German, while Senior Editor Emily Lakdawalla wraps up a working tour of New Zealand. Then join Bruce and Mat for this week’s What’s Up.

Big Science, Big Rocket at the Marshall Space Flight Center

September 05, 2018 • 49:38.05

Mat Kaplan’s Huntsville, Alabama trip wraps up with a tour of the historic and history-making Marshall Space Flight Center. Join him at the control center for research underway on the International Space Station, under a tent where a critical component of the Space Launch System rocket is getting finishing touches, in a conversation about the Fermi spacecraft’s search for the universe’s biggest explosions, and with the Center’s Associate Director for Technical efforts.

Space Policy Edition: Destination…Mars? Contradictions and Principles

August 03, 2018 • 60:02

The Senate just held a hearing on NASA's efforts to send humans to...Mars? A week later, the same committee advanced legislation to extend the life of the International Space Station to 2030, six years beyond the current end-date and two years beyond the current hardware safety ratings.

A Conversation with Freeman Dyson

June 13, 2018 • 39:38

There’s so much more to Freeman Dyson than the Dyson Sphere. The mathematician, physicist, futurist and author is one of the greatest and most original minds of our era.

Why Mars? We’ve Got the Answers

May 16, 2018 • 38:54

The great adventure awaits! Mat Kaplan hosts an entertaining panel discussion at the 2018 Humans to Mars Summit in Washington DC. Eight guests provide their diverse and inspiring reasons for humans to visit the Red Planet.

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