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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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 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.

Ramses and rockets: Commercial space adventures and the race to Apophis

Get up to speed on the latest in commercial space news and look forward to the European Space Agency’s Ramses mission to Apophis with members of The Planetary Society team.

Space Policy Edition: Do we need a philosophy of space exploration?

Policy expert G. Ryan Faith argues for importance of communal engagement with our values and goals in space exploration. While easy answers may elude us, a careful and considered approach to this effort can help avoid common pitfalls and dead ends and ensure that future generations continue to explore space.

Possible biomarkers: Perseverance rocks the Tenth International Conference on Mars

NASA's Perseverance rover has made a groundbreaking discovery on Mars: a sample that may hold evidence of ancient microbial life. We visit the Tenth International Conference on Mars to get the details.

Meet Roo-ver and The Planetary Society’s new board member

Newton Campbell Jr., the director of the Australian Remote Operations for Space and Earth (AROSE) Consortium, discusses his career journey, AI in space, and Australia's first lunar rover, the Roo-ver.

Space Policy Edition: NASA and the American South

Every major NASA center built after the agency’s inception is located in the American South. Why? Dr. Brian Odom, NASA’s chief historian, joins the show to discuss the cultural, political, and historical implications of NASA’s expansion into the South.

An asteroid bash and an asteroid smash

We observe Asteroid Day with an update on NASA’s Double Asteroid Redirection Test (DART) mission with the Asteroid Foundation’s Markus Payer and JHUAPL’s Terik Daly.

The nova and the naming contest

RadioLab's Latif Nasser returns to Planetary Radio with a new public naming contest for a quasi-moon of Earth.

Space Policy Edition: Is Human Spaceflight a Religion?

Holy texts and salvation ideology. Saints and martyrs. True believers and apostates. This isn’t a religion — this is human spaceflight, argues Roger Launius, the former Chief Historian of NASA.

Bot battles and space dreams

Kelly Biderman, the CEO of Havoc Robotics, joins Planetary Radio to share how the National Havoc Robot League helps to prepare the next generation of space engineers. Then we hear from Florence Pouya, the former captain of the Afghan Girls Robotics Team.

TARDIS Talk: Space, Time, and “Doctor Who” with Russell T. Davies

We explore how Doctor Who has influenced the scientific community with Russell T. Davies, the past and present showrunner of the iconic science fiction TV series.

Europa Clipper’s message in a bottle

Bob Pappalardo, Europa Clipper's project scientist, visits The Planetary Society headquarters in Pasadena, CA, to share the story of the mission's vault plate, humanity's next collection of messages to another world.

Tabletops and telescopes: NASA’s RPG and the hunt for habitable worlds

We explore NASA's first tabletop role-playing game with senior multimedia specialist Christina Mitchell and a new way to find water worlds with Amaury Triaud from the University of Birmingham.

Space Policy Edition: Real and Acceptable Reasons for Space Exploration

Former NASA Administrator Mike Griffin discusses his claim that there is a tension between the so-called Real reasons that motivate spaceflight and the prosaic, Acceptable reasons used to justify space exploration within the public sphere.

OSIRIS-REx becomes APEX

Scott Guzewich, deputy project scientist for NASA’s OSIRIS-APEX mission, joins Planetary Radio to discuss the next steps for the mission as we count down to asteroid Apophis’ flyby of Earth in 2029.

The Space Race: Honoring the first African-American space explorers

This week on Planetary Radio, we take a peek behind the scenes at National Geographic's new documentary, “The Space Race,” which celebrates the triumphs and struggles of the first African-American space pioneers and astronauts.

JWST finds a new lead in the search for life on a mysterious exoplanet

Knicole Colón, the deputy project scientist for exoplanet science for JWST, joins Planetary Radio to discuss the detection of methane and carbon dioxide in the atmosphere of K2-18 b.

Revisiting the discovery of phosphorus on Enceladus

Chris Glein, a lead scientist at the Southwest Research Institute, joins Planetary Radio to talk about the discovery of phosphorus in the oceans of Saturn’s moon Enceladus and the implications for the search for life.

Dragonfly soars to final design phase

NASA's Dragonfly mission to Saturn's moon Titan has been authorized to proceed with work on final mission design and fabrication. This week on Planetary Radio, we get an update on the mission's progress and new timeline.

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