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For every week 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. We also showcase regular features that raise your space IQ while they put a smile on your face.

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Space Policy Edition: A Trillion-Dollar Space Economy?

July 03, 2020 • 1:04:05

How big is the space economy, and how big might it grow? Space policy expert Dr. Bhavya Lal brings the numbers down to Earth in a great conversation with Casey Dreier.

Jim Bell Sends New Eyes to Mars

July 01, 2020 • 53:51

The leader of the Mastcam-Z team talks about how the best cameras ever on the surface of Mars will help us explore a region that could once have supported life.

China on the Final Frontier

June 24, 2020 • 51:39

China has big plans for a space station, exploration of the Moon and Mars, and possibly a mission that will follow Voyager beyond the edge of the solar system.

LightSail 2: A Year of Solar Sailing

June 17, 2020 • 51:31

Sail on! Leaders of the LightSail 2 mission join 50,000 supporters in celebration of a year in space.

Staying Alive in Space

June 10, 2020 • 57:06

Are we learning how to keep men and women alive on a 3-year round trip to Mars?

Space Policy Edition: NASA’s Gamble Pays Off

June 05, 2020 • 1:17:25

The safe arrival of SpaceX’s Crew Dragon at the International Space Station is a huge success for NASA and policymakers who gambled years ago on the value of commercial partnerships for the agency.

Crew Dragon Thrills While Mars Chills

June 03, 2020 • 48:06

After a special message we present highlights of the successful arrival at the International Space Station of the Crew Dragon spacecraft, followed by a visit to chilly Mars with planetary scientist Edgard Rivera-Valentin.

Celebrating 30 Years of Hubble with Astronaut John Grunsfeld

May 27, 2020 • 1:01:52

Astrophysicist and former astronaut John “Hubble Repairman” Grunsfeld looks back over three decades of beautiful science and inspiration delivered by the Hubble Space Telescope.

Crew Dragon Deep Dive with Astronaut Garrett Reisman

May 20, 2020 • 43:47

Former astronaut Garrett Reisman helped lead development of the SpaceX Crew Dragon spacecraft that is about to carry astronauts to the International Space Station.

Looking for Life in Alien Oceans

May 13, 2020 • 53:00

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.

The Crew Dragon Countdown Begins With Former NASA Deputy Administrator Lori Garver

May 06, 2020 • 58:02

American astronauts are about to fly from Florida to the International Space Station for the first time in nine years, thanks to the commercial space development initiative advocated for years by Lori Garver.

Space Policy Edition: Our Moral Obligation to Explore Space

May 01, 2020 • 1:11:17

Philosopher James Schwartz shares his thoughts about the ethics of space exploration, commercialization, and settlement.

Life on Mars: Joining the Quest with Penny Boston and Jim Green

April 29, 2020 • 55:34

The search for life on Mars is at a critical stage. What will come next if we find it?

The Royal Astronomical Society at 200

April 22, 2020 • 1:13:16

Celebrating the 200th anniversary of the Royal Astronomical Society and the life of the late astronomer Margaret Burbidge.

NASA Administrator James Bridenstine Returns

April 15, 2020 • 49:34

The U.S. space agency’s leader describes how NASA is responding to the pandemic crisis as it works to keep projects and missions on track.

The Slime Mold and the Universe

April 08, 2020 • 50:58

One of Earth’s lowliest creatures has inspired and guided a team of scientists toward an improved model for the distribution of galaxies and dark matter across the cosmos.

Space Policy Edition: Our Equinox Space Policy Briefing

April 03, 2020 • 1:06:37

Join The Planetary Society’s policy team, including Bill Nye, for highlights of a members-only live briefing that shared our analysis of how the coronavirus pandemic may affect space exploration.

The Next 10 Years: Continuing our Solar System Tour

April 01, 2020 • 1:18:25

Our look ahead at the near-future of solar system exploration continues with Mars, the giant outer worlds, and the smaller bodies that can be found throughout the neighborhood.

The Next 10 Years of Planetary Exploration

March 25, 2020 • 1:09:04

Six scientists give us a preview of where planetary science may be taken in the next 10 years by a new NASA decadal survey.

Building Our Future on Mars

March 18, 2020 • 57:32

Civil engineer Peter Carrato believes we know how to use what’s available on Mars to build the human structures that will be needed by the first explorers.

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