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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Our most frequent guest returns with exciting, just-published research enabled by the 20-year mission’s enormous success. Linda Spilker has served as Cassini Project Scientist for 8 years, and was Deputy Project Scientist for the previous 13. You’ll also get the chance to win Bruce Betts’ great new intro to astronomy book in this week’s space trivia contest.
Pluto passed in front of a star on the evening of August 14. Mat Kaplan joined pro and amateur astronomers on a mountain to observe this rare event. It may reveal more about the dwarf planet’s tenuous atmosphere and other properties.
Freeman Dyson wasn’t the only space star at the ISDC. Mat talks with former astronaut and NOAA Administrator Kathryn Sullivan, leaders of the Cassini mission, innovative students and an expert on dental care in space.
The New Horizons mission was a triumph, revealing Pluto as an utterly unique and beautiful world. But the mission first had to survive challenge after challenge, fighting to be developed, meeting a nearly impossible launch deadline, and then narrowly avoiding disaster when it was barely a week from its destination.
It has been 40 years since Carl Sagan and others shared the best of humanity with the stars. A new online multimedia project has been created as a 21st century homage to the Golden Record.
A computer model based on our best data about Saturn’s cloud-shrouded moon says that torrential liquid methane pounds the surface far more frequently than previously expected. Sean Faulk and Jonathan Mitchell of UCLA explain.
A holiday edition of Planetary Radio welcomes the Planetary Society’s Senior Editor back from the annual meeting of the American Geophysical Union. Emily reports on amazing developments in planetary science she discovered at the huge conference.
More than 1,100 fans of the just-completed 20-year mission to Saturn joined us for a live tribute.
Join us at JPL and Caltech on the bittersweet morning the Cassini spacecraft plunged into Saturn.
Robert Zubrin of the Mars Society talks with Gregory Benford, David Brin, Geoffrey Landis and Larry Niven about terraforming Mars, the origin of life, the drive to explore and more.
The multi-billion dollar, multi-decade Cassini mission is about to end. A new report tries to answer an important question: are flagship science missions like Cassini worth the effort and expense? And how can NASA maximize the value of these endeavours? Dr. Ralph McNutt, co-chair of the National Academies study, reviews the report’s recommendations.
It’s the Grandest Finale. The spectacular Cassini mission’s exploration of Saturn will end on September 15th when the spacecraft plunges into the planet. Cassini Project Scientist Linda Spilker is back with one last mission update.
It is most space fans’ favorite planetary science mission, and with good reason. We visit with the man who has been in charge of Voyager mission science for more than four decades.
The world’s most powerful solar telescope has just been renamed for the man responsible for its creation. We’ll meet astrophysicist and helioseismologist Phil Goode, and we’ll enjoy a tour of the Goode Solar Telescope.
The Cassini Mission has less than two months to go before it ends with a spectacular plunge into the beautiful ringed world. Planetary Society Senior Editor Emily Lakdawalla has prepared a guide to the last orbits by the historic spacecraft.
How do you keep a dazzlingly complex spacecraft in good health after 20 years in space? That’s the challenge for Julie Webster and her team of engineers supporting the Cassini mission at Saturn.
Have you seen its stunning image of Jupiter’s south pole? The Juno orbiter is surpassing expectations and delivering surprising science. Scott Bolton, the mission’s Principal Investigator, is back with a thrilling report.
He walked with Neil Armstrong on the moon, but that may not be his greatest legacy. Buzz Aldrin was joined by other space stars at the recent Humans To Mars Summit.
Astronauts may soon ride on US rockets and in US spaceships for the first time since the last Space Shuttle flight. Jon Cowart of NASA is working with SpaceX toward the first launch of a Dragon spacecraft with humans on board.
Veteran Jet Propulsion Lab planetary scientist Bonnie Buratti talks with Mat about the wonder of our solar neighborhood that she explores in