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.
Search Planetary Radio
Professor Bethany Ehlmann served on the steering committee for the new planetary science and astrobiology decadal survey that will steer future exploration of the solar system.
International space policy and sustainability expert Mariel Borowitz explores with Casey Dreier how the war in Ukraine reaches beyond Earth in ways that are chilling and surprising.
Thousands celebrated the 61st anniversary of the first human voyage into space. We’ll take you to the Los Angeles party under the Space Shuttle Endeavour.
A healthy $26 billion has been proposed for NASA next year, but there are at least a couple of troubling factors we’ll discuss as Congress begins its review.
Casey talks with experts about the 50th anniversary of the Pioneer 10 launch toward Jupiter and beyond, and why most outer planets missions since then have been so costly.
Science historian Robert Smith describes how NASA's new flagship space observatory came to be.
Planetary Society chief of D.C. operations Brendan Curry returns for a look ahead at what to expect in 2022.
Seven Planetary Society experts and enthusiasts celebrate 2021’s many space science and exploration milestones.
Veteran astronomer Heidi Hammel discusses how the new astrophysics decadal survey lays the groundwork for decades of exciting science.
The head of NASA’s planetary defense program discusses how the DART mission represents a new era for defending our planet from dangerous asteroids.
Brendan Curry, The Planetary Society’s chief of Washington operations, helps us untangle the fast-changing and complex machinations underway in the US capitol. What does it mean for NASA?
Space outreach expert and social scientist Linda Billings talks with host Casey Dreier about the language space advocates use to share their message.
NASA’s Bhavya Lal returns to explain the challenges and big advantages of nuclear propulsion in space.
The Pentagon has released its assessment of Unidentified Aerial Phenomena. Casey Dreier and science journalist Sarah Scoles talk about what’s behind the renewed interest in UFOs and Sarah’s book, They Are Already Here.
Planetary Society grants have enabled amateur astronomers to discover and track asteroids that cross Earth’s path. We’ll meet two of them.
The White House’s proposed 2022 NASA budget is almost entirely great news, as is the announcement that two complementary orbiters will explore Venus.
NASA chose SpaceX’s Starship as the sole winner of its human lunar lander development contract in a move that may also take us closer to Mars.
It looks like former senator Bill Nelson will be NASA’s next administrator. Casey Dreier and Mat Kaplan talk about his nomination and other developments in Washington D.C., including The Planetary Society’s very successful Day of Action.
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.
Matt Hourihan of the American Association for the Advancement of Science joins Casey Dreier for a deep dive into the U.S. government’s funding of science research and development.