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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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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.

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.

Space Policy Edition: A Commercial Future for the Space Station?

May 04, 2018 • 1:03:03

After announcing it intends to divest from the International Space Station in 2025, NASA quietly released a new report on its transition plans, laying out a series of principles that will set the future of U.S. astronauts in low-Earth orbit. Can a private entity really take over the space station? Where did this idea come from anyway?

Space Policy Edition #17: The 75th Anniversary of the Rocket Age, with Dr. Michael Neufeld

October 06, 2017 • 90:19

Fifteen years before Sputnik, on a bright 1942 afternoon in northern Germany, a thundering machine of metal and fire pierced the sky, ultimately touching the edge of space for the first time in history. It opened a new era of opportunity and terror with rocket technology. Dr. Michael Neufeld joins us discuss the significance of this test and how it happened.

Ed Stone and Forty Years of Voyager in Space

August 16, 2017 • 32:00

It is most space fans’ favorite planetary science mission, and with good reason. We visit with the man who has been in charge of Voyager mission science for more than four decades.

20 Years on Mars with Matt Golombek

July 12, 2017 • 49:44

When the Pathfinder lander reached Mars 20 years ago it began a Martian renaissance that has never paused. JPL scientist Matt Golombek was the mission’s Project Scientist. He looks back and to the future of our explorations at the Red Planet.

Thomas Edison, Eclipse Chaser!

June 21, 2017 • 1:02:38

Former NPR science reporter David Baron discusses the stories of men and women who made their way across the American West to view and document the total solar eclipse of 1878.

Visiting Worlds Fantastic with Bonnie Buratti

May 10, 2017 • 56:09

Veteran Jet Propulsion Lab planetary scientist Bonnie Buratti talks with Mat about the wonder of our solar neighborhood that she explores in "Worlds Fantastic, Worlds Familiar—A Guided Tour of the Solar System."

Nazis in Space? Rod Pyle’s Amazing Stories of the Space Age

February 15, 2017 • 52:45

Rod Pyle reveals bizarre yet fascinating space projects of the past in his new book. Pyle also exposes previously classified information about missions and spacecraft you thought you knew.

A Giant Telescope and Remembering John Glenn

December 13, 2016 • 49:22

Space historian John Logsdon remembers American hero John Glenn. Planetary Society CEO Bill Nye was a big fan of the Friendship 7 astronaut—less so the new Star Wars movie. Then we get an update on the Giant Magellan Telescope from Patrick McCarthy.

Charley Kohlhase and the Greatest Voyage

October 18, 2016 • 58:54

How did the Voyager spacecraft manage to weave their magnificent way through the outer planets of our solar system? Mission Design Manager Charley Kohlhase led the team that crunched the numbers to select the best possible trajectory from 10,000 candidates.

OSIRIS-REx: The Voyage to Bennu Begins, With Dante Lauretta

September 13, 2016 • 28:50

In two years a Near Earth Asteroid now known as Bennu will have a visitor from Earth. OSIRIS-REx Principal Investigator Dante Lauretta reports on his mission’s successful launch.

Space Policy Edition #4: Near Earth Asteroids—Why we go, how we find them, and maybe mine them

September 02, 2016 • 1:04:18

In honor of OSIRIS-REx—NASA’s newest asteroid mission—we explore the policy and history of near-Earth Objects: why NASA explores them, how the government plans to find and defending the planet, and the how policy can keep up with ambitious plans to mine asteroids.

Could the Soviet Union Have Won the Space Race?

August 23, 2016 • 46:49

Space historian and policy expert John Logsdon joins Mat Kaplan for a fascinating conversation about how the US could have lost the race to the moon.

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.

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.

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.

The Royal Observatory, Greenwich and the Quest for Longitude

July 28, 2015 • 43:09

Come with us on a visit to the home of the prime meridian for a conversation with the curator of the Royal Observatory, Greenwich about the race to create a practical means for determining longitude.

A Conversation With Congressman Lamar Smith

September 30, 2014 • 28:50

The Chairman of the powerful Science, Space and Technology Committee in the U.S. House of Representatives joins us for a talk about planetary science, Europa, a human flyby of Mars and much more.

Talking with JPL's Blaine Baggett and Ed Stone About "The Stuff of Dreams"

February 25, 2014 • 33:40

JPL’s Blaine Baggett and former JPL director Ed Stone talk “The Stuff of Dreams,” a documentary about an era in planetary exploration that was both exhilarating and exasperating. Emily Lakdawalla explains why Curiosity has joined the fraternity of backward driving rovers on Mars, and Bill Nye considers the not-too-distant future when airliners and spaceliners will share the sky.

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