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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Perseverance Perseveres: A Mars rover update from Ken Farley

The Mars 2020 rover has rolled into an ancient river delta on the Red Planet. Will we find evidence of past life there?

Heavy Metal: An encounter with the Psyche spacecraft

Suit up for an up-close encounter with the Psyche spacecraft that will soon launch toward the asteroid belt.

Yuri’s Night: Join the party!

Thousands celebrated the 61st anniversary of the first human voyage into space. We’ll take you to the Los Angeles party under the Space Shuttle Endeavour.

X-raying the universe with Martin Weisskopf

X-ray astronomy is vital to solving some of the universe’s biggest mysteries. Martin Weisskopf’s brand new space telescope has joined the effort.

Legendary space physics pioneer Margaret Kivelson

A fascinating conversation with a space science and policy leader who is still hard at work in her 10th decade.

Space Policy Edition: Why are outer planets missions so expensive?

Casey talks with experts about the 50th anniversary of the Pioneer 10 launch toward Jupiter and beyond, and why most outer planets missions since then have been so costly.

5,000 worlds and counting: the success of TESS

MIT’s Michelle Kunimoto heads the TESS Faint Star Search that has revealed over 1,600 of the more than 5,000 TESS-discovered exoplanet candidates in our galaxy.

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.

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