Planetary Radio: Space Exploration, Astronomy and Science podcast

Planetary Radio: Space Exploration, Astronomy and Science

Planetary Radio brings you the human adventure across our Solar System and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts who are taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye the Science Guy and Bruce Betts as they dive deep into space science and exploration. The monthly Space Policy Edition takes you inside the DC beltway where the future of the US space program hangs in the balance. Visit planetary.org/radio for an episode guide and much more.

Planetary Radio brings you the human adventure across our Solar System and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts who are taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye the Science Guy and Bruce Betts as they dive deep into space science and exploration. The monthly Space Policy Edition takes you inside the DC beltway where the future of the US space program hangs in the balance. Visit planetary.org/radio for an episode guide and much more.

 

#1326

Space Policy Edition: Return to Launch — Cape Canaveral's unlikely history

What makes Cape Canaveral the center of U.S. spaceflight? The answer is a fascinating mix ... more

12 hrs Ago

1 HR 13 MINS

1:13:24

12 hrs Ago


#1325

Artemis II’s AVATAR and a sungrazing comet

Artemis II is the first crewed lunar mission since Apollo 17, and riding alongside the cre... more

01 Apr 2026

1 HR 00 MINS

1:00:38

01 Apr 2026


#1324

The astronaut health experiments of Artemis II

Artemis II is about more than getting four humans to the Moon and back. It's an opportunit... more

25 Mar 2026

1 HR 03 MINS

1:03:23

25 Mar 2026


#1323

Book Club Edition: The Giant Leap: Why Space is the Next Frontier in the Evolution of Life

Join us for an awe-inspiring conversation with astrobiologist and astronomer Caleb Scharf ... more

20 Mar 2026

1 HR 17 MINS

1:17:34

20 Mar 2026


#1322

The 18th European Space Conference: Dreaming of European boots on the Moon

Humanity is going back to the Moon, and Europe is already playing a critical role in makin... more

18 Mar 2026

56 MINS

56:45

18 Mar 2026


#1321

Starman: Looking back on a life exploring the Solar System

Gentry Lee spent nearly five decades at NASA's Jet Propulsion Laboratory, and in that time... more

11 Mar 2026

1 HR 01 MINS

1:01:41

11 Mar 2026


#1320

Space Policy Edition: Is there really a space race between the US and China?

Is the United States really in a new space race with China? Or is that framing missing the... more

06 Mar 2026

1 HR 08 MINS

1:08:43

06 Mar 2026


#1319

Artemis update: NASA reshapes the road back to the Moon

NASA has announced a major restructuring of the Artemis program, reshaping the roadmap for... more

04 Mar 2026

58 MINS

58:15

04 Mar 2026


#1318

Did an impact trigger cryovolcanism on Umbriel?

Could a single ancient impact have briefly transformed one of the Solar System’s dar... more

25 Feb 2026

59 MINS

59:57

25 Feb 2026


#1317

Book Club Edition: Planetary Society Chief Scientist Bruce Betts’ latest for kids

They informed and entertained together throughout the first 20 years of Planetary Radio. L... more

20 Feb 2026

56 MINS

56:54

20 Feb 2026


#1316

A new chapter at The Planetary Society: Jennifer Vaughn becomes CEO

This week on Planetary Radio, we mark a major leadership transition at The Planetary Socie... more

18 Feb 2026

59 MINS

59:59

18 Feb 2026


#1315

Where did Earth’s water come from? Clues hidden in Apollo Moon dust

Where did Earth’s water come from? In this episode of Planetary Radio, we explore ho... more

11 Feb 2026

1 HR 02 MINS

1:02:01

11 Feb 2026


#1314

Space Policy Edition: What a NASA Authorization bill actually does

What does a NASA authorization bill actually do, and why does it matter? In this episode o... more

06 Feb 2026

1 HR 00 MINS

1:00:35

06 Feb 2026


#1313

Europa’s quiet seafloor

What if Europa’s seafloor isn’t alive with activity after all? This week on Pl... more

04 Feb 2026

1 HR 02 MINS

1:02:42

04 Feb 2026


#1312

Artemis II and III: The science that brings us back to the Moon

Humans are preparing to return to the Moon. On this episode of Planetary Radio, host Sarah... more

28 Jan 2026

1 HR 04 MINS

1:04:10

28 Jan 2026


#1311

NASA science saved: Inside the 2026 budget victory

After months of uncertainty, NASA science has been spared from the largest proposed budget... more

21 Jan 2026

1 HR 01 MINS

1:01:08

21 Jan 2026


#1310

Book Club Edition: The Little Book of Aliens by Adam Frank

Famed astrophysicist and science communicator Adam Frank shares his sense of wonder and hu... more

16 Jan 2026

44 MINS

44:11

16 Jan 2026


#1309

IMAP and the shape of the heliosphere

Our Solar System is wrapped in a vast, invisible bubble created by the Sun, a protective r... more

14 Jan 2026

56 MINS

56:45

14 Jan 2026


#1308

Voyager and the heliopause: Exploring where the Sun gives way to the stars

What does it really mean to enter interstellar space, and what have we learned since human... more

07 Jan 2026

58 MINS

58:40

07 Jan 2026


#1307

Space Policy Edition: Change for the Sake of Disruption at NASA

Marcia Smith, the founder and editor of Space Policy Online, joins the show and revisits a... more

02 Jan 2026

1 HR 11 MINS

1:11:20

02 Jan 2026


#1306

Looking back: Space exploration in 2025

As 2025 comes to a close, Planetary Radio looks back on a year that reshaped space explora... more

31 Dec 2025

1 HR 08 MINS

1:08:55

31 Dec 2025


#1305

Looking back: Space policy and advocacy in 2025

2025 was one of the most consequential years for space policy in modern U.S. history. In t... more

24 Dec 2025

57 MINS

57:56

24 Dec 2025


#1304

Book Club Edition: MOONS: The Mysteries and Marvels of our Solar System by Kate Howells

It was such a delight to feature work by our own Kate Howells in The Planetary Society&rsq... more

19 Dec 2025

59 MINS

59:26

19 Dec 2025


#1303

Galileo at 30: How a mission transformed our understanding of Jupiter

Thirty years ago, NASA’s Galileo spacecraft became the first mission to orbit Jupite... more

17 Dec 2025

57 MINS

57:39

17 Dec 2025


#1302

Space Policy Edition: The Moral Case for Space Science

Why do we explore space, and why does science matter in the first place? In this Space Pol... more

12 Dec 2025

1 HR 08 MINS

1:08:34

12 Dec 2025


#1301

Inside the 2025 Mars Society Convention

The 2025 International Mars Society Convention convened at the University of Southern Cali... more

10 Dec 2025

57 MINS

57:09

10 Dec 2025