The Space Show Presents A New Open Lines Discussion for Sunday, Oct. 25, 2026.

The Space Show Presents An Open Lines Discussion, Sunday, 10-25-26

Quick Summary:

The meeting began with a brief discussion about a recent release from the Department of War and an FBI report as presented by John Hunt re a triangular object, which David dismissed as lacking credible evidence in that these data dumps never include material for third party professional inspection and analysis. The conversation then shifted to SpaceX’s Starship and the number of refueling flights required for a lunar mission, with Ajay and Phil debating the physics and payload capacity assumptions. Bill shared NASA’s updated mission profiles for Artemis III and IV, comparing the Starship and Blue Origin Blue Moon lander approaches. David expressed skepticism about the 2028 timeline for a human lunar landing, citing technical and political risks. The group also discussed the potential for space-based weapons and recent Russian and Chinese satellite maneuvers. Additionally, David shared an update from Celestis regarding regulatory challenges for lunar burial missions due to opposition from Native American and other groups. The conversation ended with brief updates on Venus missions and a mention of a round table meeting with JD Vance attended to by Dr. Kothari and having nothing to do with space.

Detailed Summary:

John Hunt mentioned recent UFO sightings and government transparency about UAPs, with David expressing skepticism about unverified claims and emphasizing the need for independent third-party verification of any physical evidence. The conversation then shifted to space topics, including SpaceX’s Starship refueling requirements for lunar missions and Blue Origin’s lunar lander approach using multiple New Glenn rockets. David announced upcoming show topics including Venus missions, NASA’s nuclear space initiatives, and a potential interview regarding the Air Force’s Collaborative Combat Aircraft program. He also addressed technical discussions about SpaceX’s numbers, urging participants to avoid getting too deep into engineering details that might lose non-engineer audience members.

The group discussed reusable rocket technology, with Ajay sharing historical context about AFRL’s work on reusable boosters in the 2000s, including both boost-back and fly-back solutions. David and Ajay debated the timeline and significance of different companies’ reusable rocket achievements, with David noting that while Blue Origin was first to successfully land a reusable rocket, SpaceX has since dominated the market. The discussion concluded with concerns about SpaceX’s Starship development timeline and potential political risks facing the project, with David expressing doubt about meeting the 2028 target due to both technical challenges and potential regulatory delays.

The group discussed concerns about SpaceX’s timeline claims and potential delays to NASA’s lunar program. Phil raised concerns about SpaceX’s track record of missing deadlines and questioned whether their claims were fraudulent, while some noted uncertainty about Elon Musk’s intentions and emphasized the need for penalties in contracts under real time constraints. Ajay highlighted the importance of achieving the 2028 moon mission timeline over pursuing criminal prosecution, and Bill mentioned recent NASA updates on the Artemis III and IV mission profiles that could inform future discussions about refueling requirements. David did not concur with the assumptions Phil was making regarding SpaceX and/or Musk intentions, suggesting Phil’s suggesting fraud were unfounded and biased.

Bill presented details of two lunar landing systems: SpaceX’s Starship approach involving multiple propellant launches and in-orbit docking, and Blue Origin’s Blue Moon Mark II lander using three modified Mark 1 transfer stages. The group discussed that both systems are still in development, with SpaceX facing additional challenges around in-orbit refueling, while Blue Origin’s approach appears more purpose-built but uses hydrogen versus methanol. The demonstration of these systems is targeted for 2027, though there are concerns about potential delays and the significant development work remaining for both approaches.

The group discussed the feasibility of lunar missions in 2028, with Ajay expressing more optimism about achieving this timeline with Blue Origin compared to SpaceX. The discussion centered on calculating the number of refueling missions required, with Ajay presenting calculations showing that 9 refueling flights would be needed if Starship’s payload capacity to LEO is around 100 tons, while Phil suggested the actual numbers might already be known but not publicly disclosed. The conversation also touched on technical challenges including boil-off issues and the mass requirements for the upper stage, with Marshall noting that refueling efficiency remains uncertain until actual testing occurs.

The group discussed technical aspects of Starship’s capabilities and mass requirements for lunar missions. Dr. Ajay presented calculations showing that 777 tons of fuel would be required for a specific Starship-HLS mission configuration, with the number of refueling flights estimated between 9 and 26 depending on payload capacity assumptions. The discussion revealed ongoing uncertainty about key parameters, particularly the dry mass of the Starship upper stage, with estimates ranging from 70 to 200 tons, and participants debated whether SpaceX’s published mass-to-LEO figures of 23-75 tons should be used as conservative estimates rather than higher projections.

The group discussed payload capacity estimates for SpaceX’s Starship, with Phil suggesting a conservative estimate of 23 tons while Ajay mentioned potential for up to 30 tons. They debated whether SpaceX and NASA’s numbers align, noting discrepancies between previous estimates of 16, 18, and 22 tons. The discussion concluded with concerns about meeting the 2028 moon mission timeline, with participants questioning whether Blue Origin’s system could be ready in time or if an alternative like Falcon Heavy would be necessary.

The group discussed NASA and SpaceX’s estimates for returning to the moon, with John Hunt suggesting that NASA would likely consult with SpaceX experts before making public statements about parameters and timelines. David shared Bob Zimmerman’s concerns about ASAP’s track record and credibility, though questions remained about whether Zimmerman had published supporting evidence for his claims about ASAP being corrupt. The discussion concluded with David expressing skepticism about the 2028 timeline for moon missions due to complexity and potential delays, while Dallas clarified that Starship cannot go directly to the moon without refueling in orbit. John Jossy posted the Zimmerman article on The Space Show blog for this program.

David expressed concerns about the feasibility of the 2028 moon mission timeline due to program vulnerabilities and potential political changes, suggesting 2029 might be more realistic. He emphasized the need to implement the program with the current administration to avoid delays from potential future political shifts. Bill countered that Artemis has strong bipartisan congressional support, though Ajay noted that past administration changes had led to program cancellations. The discussion concluded with an update about Celestis’s lunar burial mission, which is still on hold but planned due to various protests but is making progress in securing regulatory authority.

David shared news about opposition to lunar burials and lunar commerce, noting that a variety of groups have joined regulatory discussions about authorizations for lunar activities. He plans to follow up with Celestis and others to learn more about the opposition and potentially invite representatives onto his space show to discuss their perspectives.