
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.
Latest episodes

Mar 20, 2019 • 1h 10min
Bill Nye and Planetary Radio Live at Extreme STEAM
Planetary Radio Live goes on stage at the first ever Fairplex Extreme STEAM Festival in Pomona, California. Host Mat Kaplan and Planetary Society CEO Bill Nye are joined by four young space scientists and engineers in front of hundreds of families. Chief Scientist Bruce Betts is also on hand for a live edition of What’s Up. The Amoeba People perform the Planetary Radio theme, along with their tribute to Carl Sagan. Learn more about this week’s guests and topics at: http://www.planetary.org/multimedia/planetary-radio/show/2019/03020-2019-planetary-radio-live-extreme-steam.html Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Mar 13, 2019 • 35min
Boosters, Breakthroughs and Budgets: Canada and the US Look Toward Space
The last few days have seen developments that will shape the space exploration plans of Canada and the USA. The Planetary Society’s Kate Howells is a member of Canada’s Space Advisory Board. She reviews the nation’s new space policy. Planetary Society Chief Advocate Casey Dreier takes us through highlights of the just-released NASA budget proposal from the White House. He also looks back at the Day of Action that brought citizen space advocates to Capitol Hill. Bruce Betts smells the coffee on the International Space Station in What’s Up. We close with NASA Administrator Jim Bridenstine’s passionate message for the Day of Action volunteers. Learn more about this week’s guests and topics at: http://www.planetary.org/multimedia/planetary-radio/show/2019/03013-2019-howells-dreier-bridenstine.html Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Mar 6, 2019 • 52min
China on the Final Frontier
With missions like Chang’e 4 on the far side of the Moon, China has firmly established itself as a leader in space exploration. Space journalist Andrew Jones helps us explore the nation’s ambitious near and long-term plans. Emily Lakdawalla says Mars lander InSight’s Mole has hit an obstacle, while Jason Davis shows us how Japan’s Hayabusa2 has blasted asteroid Ryugu for a sample and celebrates the SpaceX Crew Dragon. Chief Scientist Bruce Betts gets a polite dressing down from an impeccable source. Learn more about this week’s guest and topics at: http://www.planetary.org/multimedia/planetary-radio/show/2019/0306-2019-andrew-jones-china.html Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Mar 1, 2019 • 1h 30min
Space Policy Edition: When a (Space) Cowboy Came to Washington
Historian John Logsdon discusses his new book, Ronald Reagan and the Space Frontier. It explores the legacy of the 40th president’s major space policy decisions. We look at four major topics: early efforts at commercializing space, the survival crisis for planetary exploration, the Space Shuttle, and the decision to build the space station. Casey also shares good news about NASA's newest budget and how a battle between rocket companies could spell trouble for NASA's Lucy mission. More resources to explore this month’s topics are at http://www.planetary.org/multimedia/planetary-radio/show/2019/space-policy-edition-35.html Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Feb 27, 2019 • 48min
An Israeli Lander Launches Toward the Moon
Non-profit SpaceIL’s Beresheet is on its way to the Moon. Only China, the Soviet Union and the United States have safely landed there before. Host Mat Kaplan talks with SpaceIL Senior Systems Engineer Yoav Landsman, while MaryLiz Bender hears from a team member who attended the launch. Digital editor Jason Davis shares news about Hayabusa2’s successful touchdown on an asteroid. Want a rubber asteroid? You’ve got another chance to win one on this week’s What’s Up with Bruce Betts. Learn more about this week’s guest and topics at: http://www.planetary.org/multimedia/planetary-radio/show/2019/0227-2019-yoav-landsman-spaceil.html Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Feb 20, 2019 • 1h 9min
A Fond Farewell to Spirit and Opportunity
The Mars Exploration Rover mission was declared complete on February 13, 2019. On the very next day, MER Project Manager John Callas and Deputy Project Scientist Abigail Fraeman came to Planetary Society headquarters for an extended and emotional conversation with Mat Kaplan and Emily Lakdawalla. They talked about the beloved rovers and the women and men of the team that has guided them for so many years. What’s Up offers another opportunity to win a coveted rubber asteroid as we learn about the night sky and more. Learn more about this week’s guest and topics at: http://www.planetary.org/multimedia/planetary-radio/show/2019/0220-2019-mer-callas-fraeman-lakdawalla.htmlLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Feb 13, 2019 • 41min
Watching the Births of Solar Systems
Radio telescopes are delivering stunning images that, in some cases, current optical telescopes can’t equal. Witness the 20 beautiful protoplanetary disks imaged by the DSHARP team using the ALMA radio telescope in Chile. The diversity of these proto-solar systems is astounding. Principal investigator Sean Andrews will tell us how the pictures were created, and why they are surprising and delighting astronomers. Senior editor Emily Lakdawalla is literally looking back on objects around our own solar system. She tells us how backlit images reveal their secrets. The rubber asteroids have returned! You can win one in this week’s space trivia contest. Learn more about this week’s guest and topics at: http://www.planetary.org/multimedia/planetary-radio/show/2019/0213-2019-sean-andrews-dsharp-protoplanetary.html Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Feb 6, 2019 • 47min
The DART Mission: Learning How to Swat Dangerous Asteroids
Why did the dinosaurs die? Because they didn’t have a space program! The upcoming DART mission will test our best thinking about how we may someday deflect a Near Earth Object that is speeding toward fiery Armageddon on Earth. Nancy Chabot of the JHU Applied Physics Lab is the mission’s Coordination Lead. The Curiosity rover has reached an exciting new region of Mars. Senior Editor Emily Lakdawalla will give us the lowdown. The night sky is full of treasures according to Bruce Betts. Join Bruce and Mat for this week’s What’s Up. Learn more about this week’s guest and topics at: http://www.planetary.org/multimedia/planetary-radio/show/2019/0206-2019-nancy-chabot-dart.html Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Feb 1, 2019 • 1h 6min
Space Policy Edition: Should the U.S. be in a space race with China?
China's space program notched an impressive "first" last month when its Chang'e 4 spacecraft landed on the far side of the Moon. The U.S. space program, in contrast, was in the midst of an extended shutdown. Some observers expect China's growing space capability and lunar ambitions to trigger a new space race. Not Dr. Roger Handberg, Professor of Political Science at the University of Central Florida. He discusses how the current geopolitical situation differs from the Cold War standoff between two superpowers, and how we shouldn't expect dollars to flow back to the U.S. space program as a consequence of China's space successes. Cooperation, or even friendly competition, is a much more likely outcome than a new space race. More resources to explore this month’s topics are at http://www.planetary.org/multimedia/planetary-radio/show/2019/space-policy-edition-34.htmlLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Jan 30, 2019 • 55min
Where Do We Come From? The Origin of Life
Astrobiology is the discipline that explores the origin of life in the universe, and whether life exists anywhere other than Earth. It’s an increasingly exciting field according to University of Washington Research Associate Michael Wong. Mike reviews the current thinking and provides some of the chemical basis for life as we know it, and possibly as we don’t know it. Planetary Society Senior Editor Emily Lakdawalla explains why we don’t see stars in many images of bodies across the solar system, while Society CEO Bill Nye marks the end of the US government shutdown that has hampered so much science. Five more winners will receive copies of First Man in this week’s What’s Up space trivia contest. Learn more at: http://www.planetary.org/multimedia/planetary-radio/show/2019/0130-2019-michael-wong-life-origin.htmlLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.