Planetary Radio: Space Exploration, Astronomy and Science

After NASA's OSIRIS-REx spacecraft's successful sample retrieval from asteroid Bennu, it's onto its next adventure as OSIRIS-APEX, the Apophis Explorer. Scott Guzewich, deputy project scientist for APEX, joins Planetary Radio to discuss the next steps for the mission as we count down to asteroid Apophis’ flyby of Earth in 2029. Then Bruce Betts, The Planetary Society’s chief scientist, pops in for What's Up and a look at other multi-world missions. Discover more at: https://www.planetary.org/planetary-radio/2024-osiris-apex See omnystudio.com/listener for privacy information.

This week on Planetary Radio, we take a peek behind the scenes at National Geographic's new documentary, “The Space Race,” which celebrates the triumphs and struggles of the first African-American space pioneers and astronauts. Co-directors Diego Hurtado de Mendoza and Lisa Cortés, space pioneer Ed Dwight, and astronaut Leland Melvin join us to discuss the film. But first, Casey Dreier, The Planetary Society's chief of space policy, and Jack Kiraly, our director of government relations, give an update on the U.S. budget gridlock that caused the recent layoff of hundreds of people at NASA's Jet Propulsion Laboratory. Twitch streamer Moohoodles joins the show later to talk about her upcoming stream with Planetary Radio, and we close out with What's Up with Bruce Betts and a new random space fact. Discover more at: https://www.planetary.org/planetary-radio/2024-space-raceSee omnystudio.com/listener for privacy information.

This podcast explores humanity's historical interpretations of solar eclipses, from ancient cultures to modern scientific understanding. It discusses the evolution of eclipse interpretations, statistical trends in solar eclipses over time, and the awe and wonder of witnessing a total solar eclipse. The episode also introduces The Planetary Society's new science editor and shares insights from the chief scientist.

It’s a policy paper episode! Laura Delgado López joins the show to break down “Clearing the Fog: The Grey Zones of Space Governance” by Jessica West and Jordan Miller. Grey zones are harmful or disruptive space activities that fall short of provoking a military response — ideally. But the ambiguity, by its nature, could generate unplanned escalation and conflict. What are these grey zones, and why do they exist? What are their consequences to humanity, even for those in nations not actively pursuing spaceflight? And by what means can we reduce the uncertainty and, therefore the risk to space operations at Earth and beyond? Laura Delgado López has worked in space policy in the Washington, D.C., area for nearly 15 years and is currently a visiting fellow with the Americas Program at the Center for Strategic and International Studies (CSIS), where she researches and writes on international space cooperation in Latin America. She selected this episode’s paper, which can be accessed for free at the Centre for International Governance Innovation’s website.Discover more at: https://www.planetary.org/planetary-radio/grey-zones-in-space-governance See omnystudio.com/listener for privacy information.

Celebrate the 20th anniversary of Mars rovers Spirit and Opportunity. Explore the rarity of solar eclipses and their potential experiences on other celestial bodies. Reflect on the impact of Mars missions in redefining our understanding of the planet. Discover scientific findings and unexpected beauty on Mars. Learn about the formation of a geographic meridianic plenum and evidence for ancient hot springs. Marvel at the serendipitous discoveries and longevity of the Mars rovers. Discuss the challenges and triumphs of operating the spacecraft. Contemplate the immense size and power of the sun.

Blazing a Trail to the Moon features guests Casey Dreier, Jack Kiraly, and Kate Howells. They discuss the Japanese space agency's successful lunar landing, upcoming solar eclipse, and the importance of advocacy and funding for space missions. The podcast also explores NASA's Lunar Trailblazer mission and the significance of mapping the moon's water resources. Additionally, it discusses the framing issue in Apollo 11 images and announces a future episode on solar eclipses.

This week on the podcast, Sabine Stanley, Professor of planetary physics at Johns Hopkins University and author of the book 'What's Hidden Inside Planets?', discusses the amazing things that lie beneath the surfaces of planets. Topics include studying planetary interiors, mantle blobs, plate tectonics on Mars, seismic activity and composition of planets, Jupiter's interior structure, and exploring the internal workings of gas giants and ice giants. The podcast also touches on NASA's Commercial Lunar Payload Services program and the naming origins of space shuttles.

Guest Knicole Colón, deputy project scientist for exoplanet science for JWST, discusses the discovery of methane and carbon dioxide on exoplanet K2-18 b, potentially transforming our search for extraterrestrial life. They explore the limitations of the Hubble Space Telescope, the promising capabilities of the James Webb Space Telescope, variations in composition and characteristics of the exoplanet, and the potential for life on sub-neptunes.

India's space program has evolved from practical programs to symbolic feats of spaceflight. Prime Minister Narendra Modi announced ambitious plans for Indian space stations and lunar missions. The podcast explores India's history, motivations, and ambitions in space. It discusses India's focus on meeting social needs and its growth in parallel with the economy. The episode also delves into India's Mars Orbiter Mission, its collaboration with Israel, and its increasing commitment to commercial and human spaceflight.

Chris Glein, lead scientist at Southwest Research Institute, joins to discuss the discovery of phosphorus on Enceladus, its implications for the search for life, abundance of phosphorus on Enceladus, Cassini spacecraft's exploration of potential habitability and possibility of life on Enceladus, proposed mission Enceladus Lifefinder, importance of studying natural geological experiments on Insolidus, significance of studying Enceladus and interconnectedness of Earth, Enceladus, and exoplanets, and discussion on learning from Martian samples and sulfur dioxide clouds on Venus.