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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Astronomer Jane Greaves returns with an update on the phosphine gas floating above Venus, before Casey Honnibal takes us through her team’s discovery of water right out under the Sun on Earth’s Moon.
Two pioneering Mars orbiters are still doing great work above the Red Planet, while the first operational Crew Dragon spaceship has delivered four astronauts to the International Space Station.
A distant, lonely planet has been discovered as it wanders the galaxy, while Bill Nye helps us celebrate selection of a radically-simple sample collection system for trips to the Moon and Mars’ moon Phobos.
Joel Sercel believes we are entering an era in which asteroid mining and other commercial development of space are imminent, but he’s concerned about how we will avoid the mistakes of past eras of human expansion.
The leader of the OSIRIS REx asteroid sample return mission shares more details of last week’s encounter in an exclusive interview, while we also learn about the proposed mission to look for life on Saturn’s moon Enceladus.
The OSIRIS-REx spacecraft appears to have collected its first sample from asteroid Bennu, while a team led by Jane Greaves has discovered what could be evidence of life in the clouds of Venus.
Creators of an outstanding new collection of poems about spaceflight and exploration join Mat Kaplan to talk about the book as Bill Nye and other notables read selections.
NASA’s planetary protection officer joined Mat Kaplan’s Humans to Mars summit panel for a great conversation about protecting worlds throughout the solar system from what could be devastating contamination.
Astronomer and planetary scientist Heidi Hammel’s AURA shines bright across our solar system and beyond.
Planetary Society Solar System Specialist Emily Lakdawalla makes a big announcement, and shares stories from her long history with the organization.
It could be a profound and historic discovery made on Earth’s nearest planetary neighbor.
Former Dawn mission director Marc Rayman of JPL reveals the secrets of the bright spots on dwarf planet Ceres, and we celebrate 10 years as Planetary Society CEO with Bill Nye.
Georgetown University planetary scientist Sarah Stewart Johnson chronicles the long history of our fascination with Mars and the possibility of life there, culminating with Perseverance, the new rover now headed there.
How will the universe end? That’s the question explored by cosmologist Katie Mack in her very entertaining new book.
New research reveals why Earth is on its own in this solar system’s habitable zone where liquid surface water flows, but the same isn’t true across the galaxy.
SuperCam principal investigator Roger Wiens shares how his new and improved laser-based spectrometer will help look for past life in Jezero Crater, while its microphone lets us listen to the Red Planet.
Splashdown! The astronaut and former leader of Dragon capsule development at SpaceX is back to celebrate the spacecraft’s successful mission.
Our special guests are the leaders of the Emirates Mars Mission whose Hope spacecraft is now headed for the Red Planet.
The United Arab Emirates is headed for Mars as comet NEOWISE speeds back to the outer reaches of the solar system, and three white papers address the future of planetary science and defense.
Join the mission’s deputy project scientist as the Perseverance rover prepares to search for life on the Red Planet.