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. The full show archive is available for free.

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The weather on brown dwarfs, and worlds on the eve of destruction

Johanna Vos watches the weather on brown dwarf worlds while her colleague, Sam Grunblatt, finds giant planets spiraling toward their doom.

Space Policy Edition: JWST and the politics of mega-science (with Robert Smith)

Science historian Robert Smith describes how NASA's new flagship space observatory came to be.

Nobel laureate John Mather: The promise of the James Webb Space Telescope

JWST senior project scientist John Mather has been looking forward to the new space telescope’s first light for more than 30 years. He joins us with a fascinating preview.

Curiosity rolls on: Mars Science Laboratory project scientist Ashwin Vasavada

The Curiosity rover’s lead researcher reviews the latest findings and images from Mars’ Gale Crater.

We have touched the Sun: The Parker Solar Probe’s triumph

A spacecraft has penetrated the Sun’s corona for the first time, revealing unprecedented data and capturing a mind-blowing video.

Space Policy Edition: What We're Watching in 2022

Planetary Society chief of D.C. operations Brendan Curry returns for a look ahead at what to expect in 2022.

Return to the Moon: Spacesuits and preparing for splashdown in the Pacific

Building the next spacesuit for Moon walkers, and a shipboard update on how the Artemis 1 Orion capsule will be recovered from the Pacific Ocean.

A good year for space: Planetary Society all-stars review 2021

Seven Planetary Society experts and enthusiasts celebrate 2021’s many space science and exploration milestones.

JWST is ready for launch and amazing science

Three astronomers share what they hope the James Webb Space Telescope will reveal about our universe after launch.

A conversation with the director of “Don’t Look Up”

Director Adam McKay and planetary defense expert Amy Mainzer join us for a conversation about the film and the science behind it.

Space Policy Edition: Astronomy goes big, with Heidi Hammel

Veteran astronomer Heidi Hammel discusses how the new astrophysics decadal survey lays the groundwork for decades of exciting science.

The DART asteroid impact mission begins, with Nancy Chabot

The DART mission begins its journey that will end when it smashes into an asteroid, demonstrating how we might save Earth from a devastating impact.

Spacecraft communications and navigation with Badri Younes

Spacecraft need a navigation and communication infrastructure to carry out their missions. Learn how NASA does it and what’s in store for the future.

Space Policy Edition: We're entering a new era of planetary defense (with Lindley Johnson)

The head of NASA’s planetary defense program discusses how the DART mission represents a new era for defending our planet from dangerous asteroids.

Sarah Al Amiri and the new UAE mission to the asteroid belt

The head of the United Arab Emirates space agency announces a new mission to explore seven asteroids.

Leaders of the Lucy asteroid mission

Principal investigator Hal Levison and colleagues prepare us for the launch of NASA’s Lucy spacecraft in an exclusive interview.

Why didn’t Dawn land on dwarf planet Ceres?

The ion engine-powered Dawn spacecraft will orbit Ceres for many years. Could it have touched down on the surface of the dwarf planet?

Mars Beckons: The 2021 Humans to Mars Summit

Highlights of the annual gathering of leaders and experts who are building toward humans walking on the Red Planet.

The Case for a Return to Enceladus

Flying a spacecraft through geysers spewing from Saturn’s moon Enceladus might reveal the building blocks of life or even life itself.

An ESCAPADE to Mars, on the cheap

Can NASA send robotic explorers to Mars for a tiny fraction of what most missions cost?

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