Podcast Episode Details
Back to Podcast Episodes
The Space Show presents a "fireside" detailed space chat with DR. CASEY HANDMER.
The Space Show Presents Dr. Casey Handmer, Tuesday, Dec. 2, 2025
Short Summary:
The meeting focused on discussing the Artemis program’s challenges and complexities, with particular emphasis on comparing NASA’s current architecture with SpaceX’s Starship capabilities for lunar missions. The group explored various technical and political considerations, including orbital refueling requirements, safety constraints, and the potential for China to establish a lunar presence before the U.S. They also discussed broader topics such as the feasibility of Mars missions, the challenges of powering data centers in space, and the need for NASA reorganization to remain competitive in the global space race.
Detailed Summary:
David and Casey discussed the challenges and complexities of the Artemis program, emphasizing the need for simplification and focusing on delivering only what is essential to achieve the lunar mission. Casey highlighted the importance of reducing complexity, similar to the Apollo era’s lunar orbit rendezvous approach, and noted that congressional funding often prioritizes parochial interests over strategic goals. They also touched on the potential for China to establish a lunar presence by 2029, suggesting that the U.S. needs to accelerate its efforts to remain competitive.
Casey criticized the current NASA architecture for returning to the moon, particularly SLS, Orion, and Gateway, arguing they are inefficient and costly, while Starship offers a more viable alternative. Phil challenged Casey’s views, questioning whether halting funding for Orion and SLS is the right move, and they debated Starship’s current capabilities, with Casey defending SpaceX’s engineering expertise and Phil citing his own calculations showing Starship lacks sufficient delta-V for orbital flight. Marshall suggested that Test Flight 13 could demonstrate Starship’s orbital capabilities, potentially resolving the debate.
The Space Show Wisdom Team discussed the comparison between SpaceX’s Starship and NASA’s SLS/Orion programs, focusing on orbital refueling capabilities and safety constraints. Casey argued that even if Starship demonstrates orbital refueling, NASA would continue funding SLS due to political reasons, while Phil suggested canceling SLS if Starship meets safety constraints and achieves 100+ ton propellant transfers. The discussion highlighted concerns about Starship’s refueling requirements and success rates, while emphasizing the challenges of orbital refueling compared to satellite deployment. Bill noted that launch success probabilities might improve over time, but Casey emphasized the timing issues and marginal requirements in the Artemis program.
The group discussed the differences between SpaceX’s and NASA’s approaches to space exploration, with Casey emphasizing the efficiency and innovation at SpaceX’s Starbase in Texas. All discussed the challenges of boil-off in rocket fuel tanks, noting that while it is a concern for liquid hydrogen, it is not a significant issue for methane. They also explored the possibility of using Falcon Heavy instead of the SLS and Orion for lunar missions, with Ajay suggesting that Falcon Heavy could be a more cost-effective and safer option. Casey agreed, stating that using Falcon Heavy and Dragon could simplify and potentially reduce the risks of the Artemis program.
The Wisdom Team discussed the Artemis program and its viability for returning to the moon, with Casey explaining that while many in the industry doubt the current approach, the program remains a government policy with congressional approval. David raised concerns about the lack of technical expertise at the highest levels of NASA and questioned how to effectively advocate for program changes, noting that Congress may not fully grasp technical details. Casey suggested that successful completion of the HLS contract by SpaceX could influence future decisions, while Marshall highlighted the
Published on 1 week, 1 day ago