Show notes
Special Open Lines as the last Space Show for 2025, 12-30-25Quick SummaryWe explored various rocket systems’ capabilities and development status, including SpaceX’s Starship, Blue Origin’s New Glenn, and NASA’s SLS, while discussing the Artemis missions and Gateway project funding. The program ended with discussions about space infrastructure development, sustainable technology implementation, and the future of space exploration, including private sector initiatives and the potential for dual-use technologies.Detailed SummaryI discussed my appearance on Tom Olson’s radio show. We then discussed the phenomenon of SpaceX employees potentially leaving to start their own space businesses after the company’s IPO, which John Jossy clarified as similar to the “PayPal mafia” concept. Doug expressed skepticism about Mike Griffin’s plan to meet the 2028 moon timeline using existing architecture, noting that Starship’s development is crucial for Artemis III’s success. The conversation also touched on the U.S.’s withdrawal from the Gateway project as depicted by Tom, with ESA now taking full responsibility for its development. This was later challenged and clarified.We talked about the status of the Gateway project for the Artemis missions, clarifying that Congress has provided full funding for Gateway despite the President’s budget proposal to end it. They debated the necessity of Gateway and the NRHO orbit, with concerns raised about astronaut safety and the potential to strand individuals on the moon. David shared insights from a recent show featuring Mike Griffin, noting lower-than-expected viewership despite high expectations, perhaps due to the holidays. Later we discussed the success of Blue Origin’s New Glenn launch.Also discussed were the capabilities and development status of various rocket systems, including SpaceX’s Starship, Blue Origin’s New Glenn, and NASA’s SLS. Doug explained that SpaceX’s Starship version 2 is still in development and its payload capabilities are not yet proven, while Blue Origin recently announced plans to stretch their New Glenn rocket to increase its payload capacity. We touched on SpaceX’s Mars cargo landing plans, with Doug noting that Elon Musk’s target of 10-30 tons for initial cargo landings seems low to reduce the number of refills needed, potentially eliminating the need for propellant depots or tanker flights. Marshall raised questions about the orbital reentry and heat shield capabilities of the Starship, suggesting that SpaceX may not fully understand how to handle the heat shield requirements for both lunar and Martian landings until they attempt a test flight.Our Wisdom Team discussed SpaceX’s progress with their Starship program, noting that while they have had successful ocean landings, a double catch test is an important benchmark for evaluating shield performance. John Jossy mentioned that Relativity Space, led by Eric Schmidt, plans to launch their Taren R rocket late next year with the goal of building data centers in space. The conversation ended with welcoming two new participants, Benjamin Ayala and Twain Knight, who expressed interest in learning about space and discussed their academic backgrounds in physics and aerospace engineering both were students but as you will hear, fizzled out as being guests on the program.The group discussed the need for NASA to develop a sustainable infrastructure plan for a permanent presence in space, with Gary Barnhard (he joined us via Zoom) emphasizing the importance of establishing clear driving requirements from a science, systems engineering, and architectural design standpoint. Gary shared an example from the International Space Station’s development to illustrate the impact of controversial requirements, highlighting the need for careful consideration of system capabilities. The discussion concluded with Gary outlining plans for a collaborative design charrette leading up to IAC 2026, which aims to gather insights and explore potential synergies for improving space infrastructure, with a focus on leveraging international partnerships and developing interoperability specifications for power beaming and communication networks.Gary discussed a novel approach to micro and partial gravity adaptation, emphasizing the importance of implementing technology with real-world applications and tangible data. Doug inquired about the goal of a design charrette, which Gary explained is to articulate driving requirements rather than provide prescriptive architectural recommendations. They discussed the development of SpaceX’s Starship and the potential for propellant depots, with Gary highlighting the need for sustainable infrastructure and the importance of understanding various propulsion solutions. The conversation touched on life support systems for space missions, with Gary emphasizing the need for systems with multiple degrees of failure tolerance and a buffer for self-stabilization.The discussion continued to focus on the future of space exploration and commercial space activities. Gary emphasized the importance of private sector initiatives and the need for companies to take responsibility and authority in driving progress. He noted that the cost of launching payloads to the moon has decreased significantly, with potential for further reductions. Marshall highlighted SpaceX’s achievements in 2025, including the success of Falcon 9 and Starlink satellites, and predicted that SpaceX could become the leading force in space exploration by 2027. The group discussed the economic implications of these developments and the potential for dual-use technologies that benefit both space and terrestrial applications.We discussed challenges and progress in space exploration, with Marshall highlighting SpaceX’s successful recovery of its first stage and Blue Origin’s advancements with hydrogen-oxygen upper stages. David expressed concerns about the lack of substantial progress in human spaceflight and space settlement, comparing it to the slow development of nuclear power. John Hunt suggested that developing a continuously inhabited moon base could provide more experience for long-term space living before considering permanent settlement. We emphasized the potential for private enterprise to drive future space missions, citing its willingness to take risks and its ability to operate without government scrutiny. The conversation also touched on the psychological impacts of sending couples and families into space and comparing it to the spirit of early American settlers.Gary presented an overview of XISP Inc.’s mission development efforts, highlighting their work on space wear technology that combines electro muscular stimulation with kinetic fabrics for exercise in variable gravity environments. He explained that the technology, which can provide equivalent of a 4-hour workout in 20 minutes, is already available commercially and is being tested with a broad demographic group. David expressed interest in featuring Gary in a dedicated Space Show segment and discussed the potential for using similar technology with animals, particularly dogs, for space missions. The group agreed to schedule Gary’s next appearance on the Space Show for February.\ or later, then program concluded its broadcast.Special thanks to our sponsors:Northrup Grumman, American Institute of Aeronautics and Astronautics, Helix Space in Luxembourg, Celestis Memorial Spaceflights, Astrox Corporation, Dr. Haym Benaroya of Rutgers University, The Space Settlement Progress Blog by John Jossy, The Atlantis Project, and Artless EntertainmentOur Toll Free Line for Live Broadcasts: 1-866-687-7223 (Not in service at this time)For real time program participation, email Dr. Space at: [email protected] for instructions and access.The Space Show is a non-profit 501C3 through its parent, One Giant Leap Foundation, Inc. To donate via Pay Pal, use:To donate with Zelle, use the email address: [email protected] you prefer donating with a check, please make the check payable to One Giant Leap Foundation and mail to:One Giant Leap Foundation, 11035 Lavender Hill Drive Ste. 160-306 Las Vegas, NV 89135Upcoming Programs:Broadcast 4482: Zoom: Open Lines to kick of 2026 | Sunday 04 Jan 2026 1200PM PTGuests: Dr. David LivingstonZoom: Open Lines to start the New Year Get full access to The Space Show-One Giant Leap Foundation at doctorspace.substack.com/subscribe