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Ready to Sail! LightSail 2 Deploys its Silvery Wings

Join us as the little cubesat successfully unfurls its solar sail! You’ll hear from members of the LightSail 2 mission team on the morning of July 23, 2019, when the critical command was sent to the spacecraft.

Apollo 11 and the Woman Who Helped Get It Home

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

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)

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!

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

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

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

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)

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

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

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.

Talking with NASA Administrator Jim Bridenstine

The former Oklahoma congressman and Navy aviator stepped into the leadership role barely a year ago. Now he wants to see humans back on the Moon by 2024 as a vital stepping stone to Mars. Join us for a wide-ranging conversation about this ambitious plan and much more.

A Last Visit With LightSail 2 at the Cubesat Developers Workshop

Mat Kaplan visits Cal Poly San Luis Obispo for a last, clean room visit with LightSail 2, the Planetary Society’s solar sailing cubesat. While there, Mat also talked to attendees at the Cubesat Developers Workshop, including the creator of the tiny “Pocket Rocket” engine for small spacecraft.

Planetary Radio Live Defends Planet Earth!

Leaders of the global effort to avoid a catastrophic Near Earth Object impact gathered at the 2019 Planetary Defense Conference. On the evening of May 1st, The Planetary Society partnered in an exciting PDC public event at the University of Maryland College Park. Presentations by Society CEO Bill Nye and NASA Chief Scientist Jim Green were followed by Planetary Radio Live.

Space Policy Edition: Lessons From the Moonshot That Never Was (with Mark Albrecht)

Thirty years ago, Dr. Mark Albrecht led the National Space Council when President George H.W. Bush announced the Space Exploration Initiative, an ambitious effort to send humans to the Moon and then on to Mars.

The Skies of Super-Earths and Mini-Neptunes

There appear to be more mini-Neptunes (also known as Super Earths) across our galaxy than any other type of planet. Hannah Wakeford wants to learn if some of them support life, and she’s doing this by exploring their skies.

Lucy in the Sky With Asteroids

A rare alignment of planets and other objects will enable the solar-powered Lucy spacecraft to examine seven asteroids, six of which are among the thousands of Trojan asteroids that orbit ahead of and behind Jupiter. The mission team, include Hal Levison, Cathy Olkin and Mike Sekerak, hope to unlock secrets of our solar system’s origin through these ancient artifacts.

The Triumph of a Failed Moon Landing

The Beresheet lunar lander failed in the last few kilometers of its descent to the Moon. Two days later we learned that its team would try again.

Celebrating Yuri’s Night with Legendary Astronaut Story Musgrave

The Los Angeles celebration of Yuri’s Night came six days early this year. It attracted hundreds of space party animals, along with celebrities like Bill Nye and Story Musgrave. Host Mat Kaplan talked with both under the wing of space shuttle Endeavour.

Space Policy Edition: T-minus Five Years and Counting

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.

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