
How Safe Is Artemis II for the Astronauts
The video examines the safety architecture behind NASA’s Artemis II, the first crewed lunar‑orbit mission in over half a century. With astronauts far from the International Space Station’s quick‑return options, NASA had to pre‑plan every contingency, from trajectory design to hardware redundancy, to protect the crew on a multi‑day journey around the Moon. Key safety measures include a finely tuned flight path that would naturally bring Orion back to Earth even if power were lost, multiple layers of backup—extra parachutes, spare batteries, and four identical flight computers—and spacesuits capable of sustaining life for up to six days in an emergency. An uncrewed Orion test flight uncovered a heat‑shield defect, prompting a steeper re‑entry angle to mitigate the risk, a solution that satisfied even skeptical former astronauts. The video highlights the rigorous testing regime and the candid concerns raised by veteran astronauts after the heat‑shield issue surfaced. By adjusting the re‑entry profile and demonstrating the system’s resilience, NASA restored confidence among its crew and the broader aerospace community. These safeguards illustrate how NASA builds trust through systematic risk mitigation, setting a precedent for future deep‑space missions and commercial lunar endeavors.

Space Policy Edition: Return to Launch — Cape Canaveral's Unlikely History - Planetary Radio
The episode spotlights Steven C. Smith’s new book *Return to Launch*, a deep dive into the evolution of Kennedy Space Center and Cape Canaveral from Cold‑War missile testing to today’s commercial and SLS era. Smith, a former visitor‑complex communicator, explains...

Artemis II’s AVATAR and a Sungrazing Comet - Planetary Radio
The episode of Planetary Radio focuses on NASA’s Artemis II mission, highlighting the Avatar organ‑chip experiment and the imminent passage of a sungrazing comet. It introduces Lisa Carnell, director of NASA’s Biological and Physical Sciences Division, and astronomer Alan Mori discussing...

Astronaut Steve Bowen Speaks About Life on Artemis II
NASA astronaut Steve Bowen, a veteran of three shuttle flights, a Crew Dragon mission and 14 years in the submarine force, discusses what living aboard Artemis II’s Orion capsule will feel like. He contrasts the cramped conditions of submarines with the...

NASA Gets HUGE Overhaul, Here's Everything You Need to Know About the "Ignition" Event.
NASA’s "Ignition" event laid out the most sweeping revision of the agency’s roadmap in years, bundling new human‑spaceflight milestones with a suite of robotic and commercial initiatives. The centerpiece is an accelerated Artemis schedule that will push astronauts back to...

The Astronaut Health Experiments of Artemis II - Planetary Radio
The Planetary Radio episode spotlights Artemis II as the first crewed deep‑space flight since Apollo, emphasizing its suite of human‑health experiments. NASA’s Human Research Program (HRP) will fly instruments to measure radiation, cardiovascular function, isolation stress, micro‑gravity adaptation, and cabin environment,...

Book Club Edition: The Giant Leap: Why Space Is the Next Frontier in the Evolution of Life
The Planetary Society’s book‑club episode spotlights Caleb Sharf’s recently released The Giant Leap, arguing that humanity’s spread beyond Earth will be the next major evolutionary transition. Sharf frames space colonization not as a luxury but as an inevitable “dispersal” that...

The Astronauts Will Be RESEARCH SUBJECTS?! The Biology Experiments on Artemis II
The Artemis II flight, NASA’s first crewed test around the Moon, doubles as a living laboratory. Beyond piloting Orion, the four astronauts become research subjects, carrying a suite of biomedical and environmental experiments designed to reveal how deep‑space conditions affect human...

The 18th European Space Conference: Dreaming of European Boots on the Moon
The 18th European Space Conference in Brussels served as a barometer for Europe’s ambitions in the new lunar race. Delegates celebrated a historic €22.3 billion pledge to the European Space Agency, the largest ever matching of ESA’s budget, and used the...

Starman: Looking Back on a Life Exploring the Solar System - Planetary Radio
The Planetary Radio episode spotlights the new documentary “Starman,” which chronicles Gentry Lee’s five‑decade career at NASA’s Jet Propulsion Laboratory. From his early work on Viking – the first attempt to land on Mars and search for life –...

Space Policy Edition: Is There Really a Space Race Between the US and China? - Planetary Radio
The latest episode of Planetary Radio’s Space Policy Edition asks whether a genuine space race exists between the United States and China. Host Casey Drier interviews former NASA adviser Dr. Patrick Bisha, who outlines how U.S. policymakers have increasingly framed...

Webinar: Getting Ready for the FY 2027 NASA Budget
Speakers from The Planetary Society held a webinar outlining the FY2027 NASA appropriations process, noting Congress’s recent bipartisan support, a confirmed administrator and the largest NASA budget in decades but ongoing pressure to ensure appropriated funds are actually apportioned and...

Did an Impact Trigger Cryovolcanism on Umbriel? - Planetary Radio
The Planetary Radio episode examines whether a single impact could have briefly awakened cryovolcanic activity on Uranus’s moon Umbriel. The discussion centers on the 131‑km‑wide Wanda crater, whose unusually bright interior ring stands out against the moon’s otherwise charcoal‑black...

Book Club Edition: Planetary Society Chief Scientist Bruce Betts’ Latest for Kids - Planetary Radio
Planetary Radio’s Book Club Edition spotlights Bruce Betts’ final two titles in a 15‑book children’s space series, marking the culmination of a partnership between the Planetary Society and Lerner Books to bring scientifically accurate, engaging content to young readers. The...

Where Did Earth’s Water Come From? Clues Hidden in Apollo Moon Dust - Planetary Radio
The Planetary Radio episode dives into new research that uses Apollo‑era lunar dust to address the age‑old question of where Earth’s water came from. Guest Dr. Tony Gargano, a post‑doctoral fellow at the Lunar and Planetary Institute, explains how his...