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Planetary Radio Program Archives

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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Latest Planetary Radio Appearance

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.

We’re Sending a Flying Machine to Titan

July 10, 2019 • 56:45

NASA has given the go-ahead for Dragonfly, a flying rotorcraft that will explore Saturn’s mysterious moon Titan. Mission Principal Investigator Elizabeth “Zibi” Turtle helps us celebrate.

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.

LightSail Takes Flight!

July 03, 2019 • 50:29

A giant SpaceX Falcon Heavy lifted off in the early hours of June 25th. One week later, the LightSail 2 solar sail was released to begin its epic mission. You’ll join the thrilling launch, meet LightSail team members and leaders of other missions, and get a solar sail update in this very special episode.

The News From Saturn-With Linda Spilker

June 26, 2019 • 48:22

It has been many months since the great Cassini spacecraft plunged into Saturn’s atmosphere and fiery death. Yet the mission lives on as the reams of data and images reveal much more of this beautiful world, its rings and its moons.

Flight by Light: A LightSail 2 Mission Preview

June 19, 2019 • 48:22

The day is almost here. With the launch of a Falcon Heavy rocket, The Planetary Society will begin its mission to prove that a tiny, orbiting spacecraft can be propelled by the light of the Sun.

Quasars and Quanta: Exploring Einstein’s Quantum Riddle

June 12, 2019 • 58:16

Even though his own work led to it, Albert Einstein never cared for quantum mechanics concepts like entanglement, which he called “spooky action at a distance.” While there’s no doubt it is real, could something even more mysterious be hiding under it?

Space Policy Edition: The Soviet Moonshot (with Asif Siddiqi)

June 07, 2019 • 2:03:54

The U.S. won the space race in July of 1969 with the success of Apollo 11. But was the Soviet Union even racing? How close were they to beating the United States to the Moon?

Starchaser: Extraordinary Astronomer Jay Pasachoff

June 05, 2019 • 61:21

Jay Pasachoff visits Planetary Society headquarters for a conversation about the latest edition of his and Alex Filippenko’s monumental textbook The Cosmos.

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.

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