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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Giving the University of Arizona Mirror Lab a spin

Join us for a tour of the University of Arizona’s Mirror Lab where they use a giant, spinning oven filled with molten glass to create the primary mirrors for the Giant Magellan Telescope.

Portrait of a Scientist: A Conversation with Psyche mission leader Lindy Elkins-Tanton

Psyche asteroid mission principal investigator Lindy Elkins-Tanton returns with her excellent new memoir, A Portrait of the Scientist as a Young Woman.

The End of Astronauts?

Britain’s Astronomer Royal Martin Rees and science writer Don Goldsmith question the value of putting astronauts in harm’s way at great expense in their new book.

Discovering Mars with Jim Bell and William Sheehan

Discovering Mars is the new chronicle of humanity’s long relationship with the Red Planet, assembled by space historian William Sheehan and Mars explorer Jim Bell.

Into the anthropocosmos with Ariel Ekblaw

Into the Anthropocosmos is MIT Space Exploration Initiative director Ariel Ekblaw’s collection of innovations that will improve life in space and on Earth.

Author Andy Weir and Project Hail Mary

The author of The Martian introduces us to his terrific new novel and shares his thoughts about the current state of space exploration.

Space Policy Edition: SpaceX's Early, Desperate Days (with Eric Berger)

Elon Musk’s SpaceX nearly failed 15 years ago as it struggled to launch its first rocket. Eric Berger has written about this challenging early era and how it helped create today’s successful, innovative company.

The Big Book of Mars: Our Obsession with the Red Planet

Author Marc Hartzman’s new book celebrates the wonder of the Red Planet and how it entered popular culture.

A Cosmic Odyssey: Decades of Discovery at the Palomar Observatory

How astronomers at California’s Palomar Observatory revolutionized our understanding of the cosmos.

Beyond Earth’s Edge: A Celebrity Space Poetry Jam!

Creators of an outstanding new collection of poems about spaceflight and exploration join Mat Kaplan to talk about the book as Bill Nye and other notables read selections.

The Sirens of Mars Call to Us

Georgetown University planetary scientist Sarah Stewart Johnson chronicles the long history of our fascination with Mars and the possibility of life there, culminating with Perseverance, the new rover now headed there.

Katie Mack and The End of Everything

How will the universe end? That’s the question explored by cosmologist Katie Mack in her very entertaining new book.

Looking for Life in Alien Oceans

JPL scientist Kevin Hand is endlessly fascinated by the possibility of life in the hidden oceans of the outer solar system’s moons, and now he has written a great book about the quest to discover it.

Space Books and Gifts for Space Kids of all Ages

Looking for the perfect space book or gift for your favorite space fans? We’ve got the lists.

Moon Mission 3D from Queen Guitarist Brian May and David Eicher

You haven’t seen the best pictures from the Apollo era and other great space achievements till you’ve seen them in 3D. Queen guitarist and astrophysicist Brian May is also mad about stereoscopic imagery.

Canada Rises…And So Does the Sun

Canada has a new Space Advisory Board, and The Planetary Society’s Kate Howells is a member.

Chief Scientist Ellen Stofan Leaves NASA

For well over three years, planetary scientist Ellen Stofan has worked directly with NASA Administrator Charles Bolden to help coordinate and expand the myriad science efforts by the agency. We talk with her as she ends this remarkable tenure.

Art That Captures the Beauty and Science of Space

Marilynn Flynn, Simon Kregar and Rick Sternbach are masters of space art. They talk about how their work furthers science and captures the imagination.

A Tiny Explorer Called Twinkle

A small but talented UK team is building Twinkle, a small spacecraft with a big mission—exploring the atmospheres of planets orbiting other stars.

Big Rockets and Little LightSails

Digital editor Jason Davis is a lucky guy. He follows and reports on human spaceflight progress, as well as the progress of the LightSail solar sail, which is about a year from its next flight.

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