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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Mars “spiders” recreated in the lab

Lauren Mc Keown, a postdoctoral fellow at NASA's Jet Propulsion Laboratory, discusses her experiences recreating Martian araneiform terrain, also called Mars spiders, in the lab.

Space Policy Edition: The Myth of Presidential Leadership

We revisit a classic book on the limits of presidential power in setting the nation’s space agenda and explore how the increasingly powerful executive branch might be rewriting those expectations.

StarTalk with Bill Nye and Neil deGrasse Tyson

We take you to Planetary Society headquarters, where Neil deGrasse Tyson, host of StarTalk, interviews Planetary Society CEO Bill Nye.

A hundred weeks in space exploration

Sarah Al-Ahmed, the host of Planetary Radio, marks her one-hundredth episode with a look back at the defining moments of the past 100 weeks of space exploration.

Seven worlds, one mission: The United Arab Emirates aims for the asteroid belt

Mohsen Al Awadhi and Hoor Al Hazmi, the director and science team lead for the Emirates Mission to the Asteroid Belt, join Planetary Radio for an update on the mission’s progress.

What does the US election mean for NASA?

Casey Dreier, the chief of space policy at The Planetary Society, analyzes what the incoming Trump administration could mean for NASA’s funding, human spaceflight, and its Science Mission Directorate.

EELS: AI-enabled snake robots and the search for life on Enceladus

Morgan Cable and Hiro Ono from NASA's Jet Propulsion Laboratory join Planetary Radio to discuss the Exobiology Extant Life Surveyor (EELS) robot concept.

Spaceport Nova Scotia

This week, we learn more about Spaceport Nova Scotia, Canada’s first commercial launch site, with Steve Matier and Sasha Jacob, the CEO and Chairman of Maritime Launch Services.

Space Policy Edition: NASA at a Crossroads

Norm Augustine, the distinguished aerospace industry veteran behind numerous influential studies, joins the show to discuss NASA at a Crossroads, the new report that raises alarm bells for NASA’s workforce, infrastructure, and technology capabilities.

Splat or subsurface ocean? The mysterious positioning of Pluto’s heart

This week we discuss recent research on the origins of Pluto’s heart and what it can tell us about whether or not the dwarf planet has a subsurface ocean with Adeene Denton from the University of Arizona.

Europa Clipper blasts off: How the mission team weathered Hurricane Milton

Bob Pappalardo, Europa Clipper project scientist, recounts the mission team's dramatic encounter with Hurricane Milton before their triumphant launch.

Internships, conferences, and grad school: A space student's guide

This week, Planetary Radio offers advice for students pursuing higher education in space-related fields. From internship insights to conference strategies and grad school survival tips, we've got you covered.

Clipper’s champions: Space advocates and the fight for a mission to Europa

The Planetary Society and space advocates around the world fought to make Europa Clipper a reality. This week, we learn more about the tumultuous history of the mission with Casey Dreier, The Planetary Society’s chief of space policy.

Space Policy Edition: The space policies of a Harris Administration

Space expert Lori Garver joins the show to explore Kamala Harris’ space policy priorities, the major issues facing NASA in the next four years, and Garver’s thoughts on the evolution of Elon Musk and NASA’s increasing reliance on the commercial space industry.

Return to Dimorphos: Looking forward to the Hera launch

We look forward to the Oct. 7 launch of the European Space Agency's Hera spacecraft with Michael Küppers, project scientist for the mission.

2024 NASA Innovative Advanced Concepts Symposium: Part 2 - Stellar imaging and looking for life while mining water on Mars

We return to the 2024 NASA Innovative Advanced Concepts (NIAC) Symposium for part two of our coverage as we explore an Artemis-enabled stellar imager and an add-on to large-scale water mining operations on Mars to screen for introduced and alien life.

2024 NASA Innovative Advanced Concepts Symposium: Part 1 - Human hibernation and swarming Proxima Centauri

Join us for part one of our journey to the 2024 NASA Innovative Advanced Concepts (NIAC) Symposium. We'll hear from the teams behind two of this year's NIAC projects that could help us study distant planets and potentially reach them ourselves.

Chasing auroras with the Aurora Guy

Vince Ledvina, also known as the Aurora Guy, joins Planetary Radio to discuss the science behind the northern and southern lights and what they can tell us about our Sun, our planet, and worlds across our galaxy.

Space Policy Edition: The Space Policy of a Second Trump Administration

Dr. Greg Autry, who served on Trump’s NASA transition team in 2016 and was nominated for the position of NASA CFO in 2020, joins the show to discuss the space policy issues facing a potential second Trump administration in 2025.

Europa in reflection: A compilation of two decades

With less than two months to go until the highly anticipated launch of NASA's Europa Clipper mission, we take a look back at over twenty years of Planetary Radio episodes about Jupiter's most intriguing moon.

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