The Space Show by Dr. David Livingston

Dr. David M. Livingston

The Space Show® focuses on timely and important issues influencing the development of outer-space commerce and space tourism, as well as other related subjects of interest to us all. doctorspace.substack.com

  1. The Space Show welcome Bob Zimmerman on space policy, news and more. A must listen to progam.

    2D AGO

    The Space Show welcome Bob Zimmerman on space policy, news and more. A must listen to progam.

    Brief Summary Our main program focus was on space exploration, where participants discussed various aspects including NASA’s role, commercial space initiatives, and the future of human spaceflight, with particular emphasis on SpaceX’s development timeline and capabilities. The conversation concluded with discussions about space markets, orbital data centers, and the broader implications of space exploration on American society and politics. The Space Show Wisdom Team including myself, guest Bob Zimmerman, Marshall Martin, Phil Swan, Dr. Doug Plata, John Hunt and Zoom phone caller Daniel. Note that in this program I experimented with various Zoom speaker layout positions. If you have a preferred format, please let me know by sending an email to drspace@thespaceshow.com or posting a blog message on the blog page on our website, www.thespaceshow.com/show/11-nov-2025/broadcast-4459-zoom-bob-zimmerman-returns. Detailed Summary: David and Bob discussed potential candidates for the position of NASA Administrator, expressing reservations about Isaacman and Sec. Duffy. They agreed on the importance of maintaining professional decorum during these discussions. The conversation also touched on the upcoming appearance of Avi Loeb on their show and the breaking up of the comet 3i Atlas. During the program Bob made some predictions about the future of space exploration. Zimmerman claimed that SpaceX, rather than NASA, is currently the most effective American space program. He predicted that in two years, everyone would recognize SpaceX’s dominance. Zimmerman also suggested that NASA’s role should become less significant, with its focus shifting to supporting private space endeavors rather than leading space exploration efforts. Bob predicted that Isaacman’s nomination as NASA administrator would successful despite potential challenges, as he expects Isaacman to be confirmed. He speculated that Trump’s initial withdrawal and subsequent renomination of Isaacman were influenced by Isaacman’s past Democratic Party affiliations and his recent statements at a Turning Point USA event, which may have reassured Trump about Isaacman’s loyalty. Bob expressed hope that Isaacman would reshape NASA to focus on public-private partnerships, making it more efficient and less relevant, though Congress’s involvement could complicate this process. He also hoped that Isaacman, as a former astronaut, would prioritize safety and engineering over schedules, potentially delaying the Artemis mission to test critical systems without risking human lives. Bob believe it is unsafe or at least very risky to fly humans on the first mission with the Orion spacecraft. Our Wisdom Team discussed the Artemis program and its workforce, with Bob estimating around 2,000 people directly involved in building Artemis missions, plus additional contractors. They debated the future of human spaceflight, with Bob expressing skepticism about the long-term value of the Artemis program compared to private space initiatives like SpaceX’s Starship. This part of the discussion concluded with Bob advocating for a more flexible approach to space exploration that focuses on building American space industry capabilities rather than competing with China to be first to return to the Moon. Phil and Bob discussed the challenges and approaches to space exploration, focusing on the differences between NASA’s cautious engineering approach and SpaceX’s faster, iterative testing method. Bob expressed concerns about the Orion spacecraft’s heat shield issues and NASA’s tendency to prioritize schedules over engineering safety, drawing parallels to past accidents. He emphasized the importance of rigorous testing and learning from failures, advocating for a SpaceX-like approach of frequent testing and flying. Bob also criticized Blue Origin’s slowdown under new leadership, highlighting the need for continuous testing and improvement in space technology development. The Wisdom Team discussed SpaceX’s upcoming launches and development timeline. Bob predicted that SpaceX’s Flight Test 12 would be successful and occur around the end of December, with Flight Test 13 potentially featuring a double catch around February. He noted that SpaceX aims to conduct an orbital mission next, followed by tests of controlled re-entry and in-orbit refueling. We also discussed SpaceX’s financial independence, with Bob emphasizing that Starlink revenue is solid and will allow SpaceX to pursue its own space program without relying on NASA. He predicted that in 2-3 years, SpaceX will be close to operational with Starship, capable of lunar missions and demonstrating refueling in space. Our team talked about Elon Musk’s space ambitions and political stance, with Bob noting that while Musk’s trillion-dollar bonus is not yet earned, his Mars colonization plans remain a key goal. David raised concerns about political polarization affecting space policy, particularly regarding Musk’s relationship with NASA and the FAA’s handling of SpaceX permits during the Biden administration. The discussion concluded with Bob comparing Musk to Cornelius Vanderbilt, emphasizing that despite Musk’s failed attempt to create a new political party, his primary focus remains on engineering and space exploration rather than politics. The Wisdom Team went on to discuss the scientific analysis of comet 3i Atlas, with Bob expressing frustration that Avi Loeb’s claims about it being an alien spacecraft have distracted from the significant finding that it is a typical interstellar comet, similar to others in the solar system. Bob criticized Loeb’s approach as overanalyzing and not supported by the data, while Phil and John suggested that Loeb’s intentions might be more about raising awareness and preparedness for such phenomena rather than genuinely believing in an alien origin. We shifted to a discussion about space exploration, with Bob predicting a busy year for commercial space launches, including attempts from several companies like SpaceX, Rocket Lab, and various Chinese and Indian startups. David inquired about the timeline for establishing private lunar habitats, to which Bob suggested that within two decades, thriving commercial operations could be established on the Moon, Mars, and other celestial bodies, pending the freedom for private enterprise in space exploration. We went on to talk about the role of robots and AI in space exploration while emphasizing that while AI and robots are valuable tools, they should not replace human exploration. Bob noted that SpaceX’s Elon Musk uses AI sparingly in their operations and views robots as tools to enable human achievement rather than as the primary goal. The conversation then shifted to Mars exploration, where Bob highlighted that current rovers have focused on scientific research rather than potential colony sites, and he suggested that future robotic missions should focus on scouting locations where humans might establish colonies. David raised concerns about Space Show programs continued heavy focus on SpaceX, noting that while SpaceX dominates the American space program, he strives to diversify the discussion topics. Not always do the participants pay attention to that effort at program diversity. The Wisdom Team started talking about development of space markets and the cost of accessing space. Bob argued that while launch costs have decreased, they are still high enough to support private investment in space companies, citing examples like SpaceX’s success and new competitors like Rocket Lab and Stoke Space. Phil countered that launch costs have not significantly decreased, with Falcon 9 still costing around $6,500 per kilogram, and emphasized that more significant cost reductions are needed for a major increase in space businesses. Collectively we discussed how competition could eventually drive down launch costs, with Robert expressing regret that Blue Origin’s delays have hindered competition with SpaceX. The Wisdom Team discussed the economics of space launch vehicles, with Bob and Phil debating the extent to which SpaceX has achieved “cheap access to space.” While Phil noted that SpaceX’s prices haven’t significantly decreased from historical rates, Bob emphasized that SpaceX’s reusable rockets provide a cost advantage over other launch providers. The discussion then shifted to Daniel’s question about space-based data centers, with Phil providing engineering insights about the challenges of power and heat management in different orbital locations. As our program was ending, phone listener Daniel brought up for discussion the feasibility of orbital data centers, with Marshall proposing the idea of using Starlink satellites equipped with AI processors and solar panels. Bob emphasized that while the concept might be promising, it would require investment capital and launch capacity. David shared his concerns about the practicality of orbital data centers, citing the challenges of energy supply and cooling in space. The discussion concluded with suggestions for future projects and the need for concise communication with our team members and the guest in future shows. HISTORICAL NOTE: During the discussion, I mentioned an older show with the student posting cube sat instructions on the web back in the day when cube sats were not a common term or space hardware item. The program in question featured Zac Manchester who was doing a Kickstarter program and he posted cube sat diagrams on the web. The program link is www.thespaceshow.com/show/05-feb-2013/broadcast-1944-special-edition. This program with Zac was dated Feb. 5, 2013. If any of you know what Zac is doing today, I would like to catch up with him, maybe have him return as a Space Show guest. If you have trouble playing this oldie but goodie, email me at drspace@thespaceshow.com. Special thanks to our sponsors:Northrup Grumman, American Institute of Aeronautics

    2h 6m
  2. The Space Show Multi-Topic Open Lines Discussion featuring The Space Wisdom Team

    3D AGO

    The Space Show Multi-Topic Open Lines Discussion featuring The Space Wisdom Team

    The Space Show Presents Open Lines Sunday, Nov. 9, 2025 Brief Summary: The program began with discussions about the delayed New Glenn rocket launch due to weather concerns, followed by conversations about space policy, regulations, and the future of the International Space Station. The group explored various space exploration programs and technologies, including NASA’s Orion program, commercial space stations, and potential human settlements on the Moon and Mars. They concluded by discussing upcoming launches, space policy uncertainties, and more. Detailed Summary: Our program began with a discussion about the New Glenn rocket launch, which was delayed due to weather conditions. Bill Gowan provided updates on the launch window and weather concerns. David discussed potential changes to the Space Show which might include plans to post videos on YouTube for a broader audience. The Space Show (SS) Wisdom Team also touched on upcoming Space Show guests and programming changes for 2025. Ryan Watson, a caller, joined the discussion to share his concerns about the FAA’s new regulations on rocket launches and the current state of air traffic control. The Space Show Wisdom Team discussed an article by Casey H. that critically assesses NASA’s Orion program, highlighting concerns about cost, schedule, and technical issues. Bill shared this article with the participants, noting his interest in further investigating these concerns. David mentioned inviting the author back to his show for a future discussion which will be Dec. 2. Peter raised questions about the future of the International Space Station (ISS), expressing concern about its planned deorbiting in 2030. Marshall explained that the ISS, like any aircraft, experiences stress and wear over time, making its continued operation unsafe beyond a certain point. He suggested that the modular design of the ISS could allow for partial reuse in a new station or other projects. David noted that space biomed researchers would like to see the ISS continue due to its valuable contributions to medical research, but he expressed doubt about its extension given budget constraints and the high cost of maintenance. The Wisdom Team discussed the future of the International Space Station (ISS) and its potential replacement with commercial space stations. Doug cited a high cost per paper ($700,000) produced by ISS research, questioning its value for American taxpayers. Phil and Doug agreed that NASA should focus on Moon and Mars programs rather than extending ISS operations, as commercial space stations are unlikely to become commercially viable without NASA funding. Bill inquired about the potential value of relocating ISS to a resource-rich location, but Doug expressed skepticism about the feasibility and cost of such an operation. The Wisdom Team discussed the value and necessity of maintaining a human presence in space, particularly focusing on space stations, the Moon, and Mars. Doug expressed skepticism about the economic benefits of space stations, emphasizing the potential for national prestige and military applications, though he questioned whether these justify human presence in orbit. The conversation shifted to the long-term potential of establishing human settlements on the Moon and Mars, with Phil and Doug agreeing that such endeavors would require a long-term perspective and careful consideration of each step. John Jossy highlighted Elon Musk’s focus on infrastructure and transportation for Mars, while also noting the need to address the question of human reproduction in space. Bill shared an update about a recent incident involving Chinese astronauts being stranded at their space station due to debris damage. The Wisdom Team took on the challenge to discuss hardware incompatibility between different space programs, particularly regarding the Chinese space station, with Bill suggesting that an adapter similar to the Apollo-Soyuz test flight project could be a solution. They also explored the Artemis program’s future, with Phil expressing optimism about its success despite public perception issues regarding cost, while Doug and Marshall discussed the potential for SpaceX’s Starship to eventually replace the Artemis program, particularly for missions beyond Artemis III. Next, the Wisdom Team discussed the upcoming New Glen launch, with Phil expressing confidence in its engineering capabilities and potential to compete with SLS. Doug highlighted Blue Origin’s Blue Moon program as a significant alternative to SpaceX’s Starship, noting its hydrogen upper stage for lunar resource utilization. David raised concerns about the lack of constants in current space policy and the challenges of planning in such an uncertain environment, while Peter suggested that private industry might be more reliable than government policies due to their focus on profitability. Our Wisdom Team discussed several key topics related to space exploration and technology. They examined the potential for data centers in space, with some skepticism about the feasibility due to thermal and cost constraints. The conversation also covered the upcoming New Glenn launch and NASA leadership candidates, with particular focus on Jared Isaacman’s potential appointment as NASA administrator. 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 Entertainment Our 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: drspace@thespaceshow.com 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: david@onegiantleapfoundation.org. If 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 89135 Upcoming Programs: Broadcast 4459 ZOOM Bob Zimmerman returns | Tuesday 11 Nov 2025 700PM PT Guests: Robert Zimmerman ZOOM. Bob is back and policy and news plus a look at space 2025. Broadcast 4460 Hotel Mars: Dr. Matthew Graham, an astronomer at the California Institute of Technology | Wednesday 12 Nov 2025 930AM PT Guests: John Batchelor, Dr. David Livingston, Dr. Matthew Graham Dr. Graham discusses the slow consumption of a star by a black hole Broadcast 4461: ZOOM Dr. Daniel Whiteson | Friday 14 Nov 2025 930AM PT Guests: Dr. Daniel Whiteson Zoom: Dr. Whiteson discusses his book “Do Aliens Speak Physics?” Broadcast 4462: Zoom: Dr. Doug Plata | Sunday 16 Nov 2025 1200PM PT Guests: Dr. Doug Plata Get full access to The Space Show-One Giant Leap Foundation at doctorspace.substack.com/subscribe

    2h 6m
  3. Dr. Roger Launius, former NASA Historian & author returns as our guest for his new book, "NACA TO NASA TO NOW" plus a look at NASA, space & the players since the beginning of our space program.

    4D AGO

    Dr. Roger Launius, former NASA Historian & author returns as our guest for his new book, "NACA TO NASA TO NOW" plus a look at NASA, space & the players since the beginning of our space program.

    Brief Summary: The program focused on a discussion with Roger Launius, a retired NASA historian, about his book covering NASA’s history from its origins as NACA to the present day. The conversation explored NASA’s relationship with commercial space industry, historical organizational changes, and the challenges of accessing NASA’s historical records and archives. The discussion also covered various technical and political aspects of space exploration, including decision-making processes, military roles in space, and the evolution of NASA’s approach to partnerships and innovation. Roger shared his thoughts on the future of space exploration, expressing uncertainty about the timeline for lunar missions and human presence on Mars. Space Show team participants included myself, John Jossy, Bill Gowan, Marshall Martin, John Hunt, Dr. Ajay Kothari, and Phil Swan. Detailed Summary: As host I welcomed Dr. Roger Launius back to the Space Show to discuss his new book, “From NACA to NASA to Now.” Launius explained that the book, published in 2025, provides a concise history of NASA from its origins as the National Advisory Committee for Aeronautics (NACA) in 1915 to its transformation into NASA in 1958. He highlighted the ongoing role of NASA’s legacy research centers in aeronautical research today. Launius also discussed the evolution of the aerospace industry, emphasizing that the distinction between “old space” and “new space” is complex and not clearly defined. He noted that private sector activities in space have a long history, dating back to the 1950s, and that NASA’s approach to commercial partnerships has evolved over time, particularly with the creation of separate entities to handle launch services in the 1990s. Bill Gowan and Roger discussed the evolution of NASA’s relationship with commercial space, noting that while NASA has always relied on commercial industry for spacecraft design and construction, there has been a shift towards non-cost-plus contracts. Roger highlighted that while NASA innovations have contributed to commercial space advancements, the designs are not entirely independent of NASA’s influence. They also explored the partisan nature of NASA’s early years, with Roger explaining that the Apollo program faced political challenges from both the left and right, and was subject to budget cuts after its initial success. The discussion focused on the impact of the government shutdown on NASA’s historical resources and archives. Roger explained that while NASA facilities are currently closed, their websites and online historical resources remain accessible, though not updated. He detailed the complex federal records system, noting that most NASA records are stored at the National Archives in Washington, D.C., and other federal record centers across the country, with access often delayed by years, especially for recent or classified materials. Marshall inquired about accessing Elon Musk’s communications with NASA and the President, to which Roger clarified that such recent records would not be available in the National Archives yet and suggested using interviews and publicly released documents for journalistic research on recent events. Roger explained that separating historical facts from salesmanship in space exploration is a challenging task due to the varied motivations behind statements. He emphasized the importance of understanding these motivations and balancing contradictory perspectives. David inquired about the feasibility of modernizing old Apollo lunar lander plans, to which Roger confirmed that NASA possesses extensive technical drawings and records of past hardware in federal records centers and has historically allowed access for analysis. Roger also described the difficult transition from NACA to NASA in 1958, highlighting resistance from the military, particularly over the transfer of the von Braun team and the Army Ballistic Missile Agency’s resources, which was a prolonged and contentious process. Our discussion addressed historical NASA consolidations and organizational changes, with Roger explaining that efforts to close or merge NASA facilities have been ongoing since the 1960s, though political opposition from congressional delegations has typically prevented closures. The conversation also covered the history of the National Space Council, which was established in 1958 but became less active after the 1960s, particularly under Nixon, before being revived by the Trump administration. John Hunt raised questions about military roles in space, noting how the Army developed its own ballistic missile programs while the Air Force maintained separate capabilities, highlighting ongoing challenges in service roles and missions. Roger explained that Space Council issues are now handled through the Office of Science and Technology Policy in the White House. He discussed the difficulty in finding detailed information about NASA’s decision-making process for certain projects, such as the Mars Sample Return mission. Roger mentioned that some individuals, like George Lowe and Bob Siemens, kept detailed records of meetings and decisions, which are now available at Rensselaer and MIT respectively. David asked if there would be a “post-NASA era,” to which Roger responded that there is no known impetus for such a transition. The conversation also touched on the public and intellectual resistance to using Nazi engineers, like Wernher von Braun, in the early American space program, and the debate within the federal government about this issue. Roger discussed the history of supersonic flight, clarifying that Chuck Yeager did not demand a million dollars to fly the X1 and that Slick Chalmers flew multiple supersonic flights. He also addressed a controversy about whether the F-86 pilot beat Yeager’s speed record, noting that the evidence was unreliable. Roger emphasized the importance of data-driven decision-making in engineering, using examples from the Challenger disaster and flight readiness reviews. Marshall inquired about decision-making processes, and Roger highlighted the need for comprehensive data and proper training in engineering education. The group discussed historical space program decisions, focusing on the Challenger launch and the X-30 National Aerospace Plane program. Roger explained that while data existed showing risks of cold-weather launches, the decision-making process was complex and the data wasn’t presented clearly, leading to the catastrophic failure. The discussion also covered the X-30 program, which was announced by Reagan in the 1980s but ended in the early 90s due to technological challenges and cost concerns, though some research continued. Roger discussed the NACA’s contributions to aeronautics, highlighting its approach to research and development. He explained how the NACA hired young engineers and provided them with advanced research tools, such as the variable density wind tunnel, which led to significant advancements in airframe and wing design. Roger also mentioned the NACA’s involvement in rocket research during World War II, which eventually led to the establishment of NASA and the transition of key personnel to the new space agency. Roger discussed his friendship with Dr. John Anderson and shared details about a 2009 incident involving Mike Griffin and Laurie Garver at a launch party for John Logsdon’s book. He explained that Mike Griffin expressed concerns about Laurie Garver’s involvement in the Constellation program, emphasizing her need to step back from technical details. Roger also highlighted Laurie Garver’s significant role in transitioning NASA to the commercial crew program, advocating for private sector involvement in space exploration. The conversation touched on the challenges NASA faced in the 1990s, including the cancellation of the X-33 program and the search for alternatives to the Space Shuttle. Concluding Summary: The meeting featured an interview with Roger, a retired NASA historian, who discussed his book on the history of NASA and its predecessor organizations. Roger shared his plans for future conferences and mentioned his current residence in Auburn, Alabama. The discussion also covered the availability of Roger’s book for free download from NASA. The conversation ended with thanks to the show’s sponsors and participants, and a reminder about an upcoming open lines session. 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 Entertainment Our 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: drspace@thespaceshow.com 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: david@onegiantleapfoundation.org. If 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 89135 Upcoming Programs: Tuesday, 11-11-25; 7 PM PDT, 10 PM EDT:Bob Zimmerman returns with space news and updates plus a look at space 2025. Get full access to The Space Show-One Giant Leap Foundation at doctorspace.substack.com/subscribe

    1h 35m
  4. Hotel Mars presents Dr. Ajay Kothari explaining the new Russian nuclear powered cruise missile, Burevestnik.

    6D AGO

    Hotel Mars presents Dr. Ajay Kothari explaining the new Russian nuclear powered cruise missile, Burevestnik.

    Hotel Mars, Weds, Nov. 5, 2025 Guest Dr. Ajay Kothari Summary: John and I welcomed back to Hotel Mars Dr. AJ Kothari for one segment to discuss Russia’s successful test of the nuclear-powered Burevestnik cruise missile which Russia claims flew 14,000 km for 15 hours. The missile does this by capturing and compresses air, heating it over a nuclear reactor to create thrust. Dr. Kothari emphasized the attack danger of this missile because it flies low (50 to 100 m above the terrain) and is hard to detect. When asked if look down tech such as an AWAC or something similar could pick it up it, he said but he also explained his answer so don’t miss it. He notes this nuclear propulsion technology, or similar ramjet designs, could revolutionize commercial travel and be applied to flight on Mars, using its CO₂ atmosphere for heating. That said it would not be good for in space or the Moon due to no atmosphere. In such cases it would need to take fuel with it which might negate any advantages it might otherwise have. 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 Entertainment Our 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: drspace@thespaceshow.com 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: david@onegiantleapfoundation.org. If 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 89135 Upcoming Programs: Broadcast 4458 ZOOM Open Lines Discussion | Sunday 09 Nov 2025 1200PM PT Guests: Dr. David Livingston Zoom: Open Lines Discussion Get full access to The Space Show-One Giant Leap Foundation at doctorspace.substack.com/subscribe

    10 min
  5. David Barnhart, CEO of Arkisys, Inc., talks about their projects including ASTROBEE, an inside the ISS free flyer, The Port and more. A must see & hear for amazing technology!

    NOV 5

    David Barnhart, CEO of Arkisys, Inc., talks about their projects including ASTROBEE, an inside the ISS free flyer, The Port and more. A must see & hear for amazing technology!

    The Space Show Presents Arkisys CEO DAVE BARNHART Sunday, 11-2-25 David Barnhart (Dave), CEO of Arkisys and research professor at USC, discussed the company’s progress in space operations and their unique business platform called “The Port” in Los Alamitos, Ca, including their work with NASA’s Astrobee facility and development of a free-flying space platform called “The Port.” The discussion covered various technical aspects including funding sources, modular space platforms, and navigation systems, while addressing challenges in hiring engineers and developing flexible infrastructure for space servicing. The conversation ended with conversations about future plans including lunar applications, and company security measures. Before ending, Dave highlighted the potential environmental impact of satellite debris and mentioned a USC PhD student’s research on the topic presented at the United Nations. I referenced future Space Show programs with Hotel Mars Dr. Kothari and Dr. Roger Lanius on Friday to discuss his new book. CEO Dave discussed his role in managing the Astrobee facility, a robotic free flyer inside the International Space Station. He explained that Arkisys, where he works, had taken over the commercial maintenance and operation of Astrobee which is used for microgravity experiments inside the ISS. The facility allows for testing in full 6 degrees of freedom in a zero-G environment, with capabilities for various payloads and operations lasting about 3 hours per session. Our guest noted that while NASA does not pay for the service, it aligns with his company business model focused on services, and they are responsible for helping customers through the necessary paperwork and procedures to use Astrobee. David went on to discuss the development of his free-flying space platform called “The Port,” which will provide a stable environment for autonomous robotics and payload hosting. He explained that the first flight of key technologies, carried by a 250-kilogram vehicle called the Cutter, is planned for late 2026, with the goal of demonstrating rendezvous capabilities with a port module in a 525-kilometer Sun Sync orbit. Barnhart noted that while there is competition in the space infrastructure and logistics sector, the market for hosted payloads and space servicing is projected to grow significantly, with potential revenue from existing markets like hosted payloads. Barnhart discussed his company’s funding, which includes government grants, SBIR, STTR, and contracts from DIU and the Space Development Agency. He explained their development of a modular space platform with propulsion capabilities, including the use of chemical systems and potential partnerships with companies using electric propulsion. Barnhart also addressed the challenges of refueling and connecting different interfaces for their platform, noting that they conducted a study on various interfaces worldwide and are working on creating a flexible system for future growth. David discussed the evolution of his satellite concept from a DARPA challenge focused on modular orbital functions to the development of “satlets” and port modules. He explained how the concept of cellularization led to the creation of scalable, multi-functional satellite components that could be aggregated, addressing the challenge of building cost-effective satellites. Barnhart described his company’s current size of 4 full-time employees plus himself, with plans to expand to 10-12 people, and mentioned their upcoming move to a larger facility to accommodate growth and develop a flat floor testing platform for robotic arm movements in space. Barnhart further discussed the challenges of hiring engineers for innovative space projects, noting that while experienced engineers are valuable for technical expertise, they may struggle with new concepts, while less experienced engineers might be more adaptable but lack depth. He emphasized the importance of finding a balance between technical expertise and innovative thinking. Ryan inquired about the potential internal applications of the Astrobee partnership with NASA, to which Barnhart confirmed that the learnings would be applied to Arkisys port module for validation and verification post-launch. Barnhart also explained the company’s use of an AI-based system, powered by a large language model, to assist in identifying potential issues with connectivity and safety. He highlighted the flexibility of the port module, which can be reconfigured and expanded in multiple dimensions to meet various customer needs, and emphasized the company’s focus on creating a versatile infrastructure for space servicing rather than specializing in a single service like refueling. The team discussed navigation systems for their spaceport module, which includes onboard cameras, GPS, IMU, and a partnership with Fugro for high-precision navigation down to centimeter accuracy using differential GPS and L-band signals. Dave explained their power management strategy, noting they have 500 watts on the cutter and plan for 1,000-1,500 watts on the port module, with power optimization software to manage shared infrastructure. Marshall inquired about lunar applications, to which he confirmed the system could be adapted for lunar and Mars orbits, including potential use as a communications router to handle different frequency standards around the moon. David also discussed the challenges of selecting the right mix of connectors for their first port module to ensure flexibility over the next five years, particularly in light of Europe’s space servicing push. He mentioned they have letters of intent from prospective customers and have conducted over 20 tests with 15 different types of customers using a full-scale port module mock-up. Barnhart also addressed cyber and IT theft protection, noting they are NIST certified and going through the audit process for CMMC, with a focus on mitigating attacks from overseas. He explained they are developing software for security, including the ability to encrypt payload data with customer-specific keys, and are allocating 5% of their monthly budget to IT security. David Barnhart discussed the company’s approach to satellite connectivity, explaining they are working with AWS ground stations and exploring optical beam communication options. He addressed Marshall’s question about interfacing with satellite constellations, noting they are currently independent but considering multiple ground station providers. Our guest responded to David’s question about succession planning, confirming they have explored directors and key people insurance and identified Dr. Raul Rugani as a potential successor. Ryan inquired about the company’s growth strategy, to which he explained they are focusing on key modularization challenges while being open to partnerships for specialized technologies like robotics, with the goal of creating flexible port modules that can accommodate various capabilities. Dave discussed the challenges and potential solutions for exploring lava tubes on Mars using a modified Ingenuity helicopter, emphasizing the need for a hybrid approach involving both aerial and rover-based systems. He explained the technology behind cave navigation using SLAM and highlighted the importance of energy and data distribution. Barnhart also described the Bosun Locker project, which provides students with 3D printable files to design and test hardware for space applications. Additionally, he addressed the environmental impact of space debris reentering the Earth’s atmosphere, noting the potential for nanoparticles to affect the atmosphere’s composition and radiation effects. David and Dave discussed the upcoming Thanksgiving holiday and both expressed gratitude to the Space Show team. They encouraged listeners to support the show through donations and subscriptions. David mentioned the next shows will feature Dr. Roger Lanius, then an open lines discussion. 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 Entertainment Our 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: drspace@thespaceshow.com 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: david@onegiantleapfoundation.org. If 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 89135 Upcoming Programs: Broadcast 4457: ZOOM Dr. Roger Launius | Friday 07 Nov 2025 930AM PT Guests: Dr. Roger Launius Zoom: Dr. Launius talks about his new book, “NACA to NASA to Now.” Broadcast 4458 ZOOM Open Lines Discussion | Sunday 09 Nov 2025 1200PM PT Guests: Dr. David Livingston Zoom: Open Lines Discussion Get full access to The Space Show-One Giant Leap Foundation at doctorspace.substack.com/subscribe

    1h 24m
  6. Bill Gowan takes The Space Show audience to an advocacy effort with Congress! Don't miss it!

    OCT 31

    Bill Gowan takes The Space Show audience to an advocacy effort with Congress! Don't miss it!

    Bill Gowan, Tuesday, 10-28-25 Quick Summary: The main focus of the discussion was Bill’s experience participating in The Planetary Society’s advocacy efforts on Capitol Hill, where he and other volunteers met with congressional representatives to advocate for increased funding for NASA’s science programs, which faces a proposed 47% budget cut in 2026. Detailed Summary David Livingston hosted a special early Tuesday space show program featuring Bill Gowan, a retired electrical and systems engineer with experience in medical comms and aerospace. Bill discussed a recent citizens lobbying event in D.C. where 300 people met with their representatives to advocate for saving NASA science, which faces a proposed 47% budget cut in the 2026 NASA budget. The discussion highlighted how NASA science benefits American society through economic, medical, and technological advancements, while also addressing concerns about NASA employee reductions, with 20% of employees expected to leave by year-end. Bill was one of the 300 participating in the advocacy event. Bill explained that the 20% net figure for employee retirements and departures to private industry includes normal attrition and is considered a legitimate concern. He clarified that the advocacy work he and others were involved in was not lobbying, as it was done on a volunteer basis without payment. Bill described his decision to participate in the October advocacy event, which involved 19 other organizations, despite the success of a similar effort in March, due to the ongoing need to encourage Congress to do more for NASA and address the organization’s weakening foundation. Bill described a two-day training event organized by The Planetary Society for over 300 participants, including meetings with congressional representatives. The training covered NASA’s budget, with President Biden requesting $3.9 billion for NASA science, while the Senate proposed $7.3 billion and the House $6 billion, though with a “not less than” clause. Bill explained that participants met with their senators’ offices and representatives, with the logistics managed by a third party to ensure efficient scheduling. Bill and David discussed strategies for advocating for NASA’s space and science budget before Congress. They highlighted the importance of preparing clear messages, leveraging public support, and emphasizing the economic benefits of NASA’s science missions. Bill shared his experience with his own North Carolina delegation, where they met with seven members, including some first-time advocates. They emphasized the need to prioritize space science, referencing China’s increased investment in space exploration, and highlighted the return on investment for NASA’s science programs. Bill also mentioned the case of Christina Cook, a North Carolina native who will be the first woman to walk on the moon, to underscore the state’s connection to NASA’s missions. Bill discussed his experiences with meetings, noting that they lasted between 15 and 30 minutes. He shared that he had not seen individuals using meetings to advocate for personal issues, but he believed it would be permissible as long as the person was clear they were speaking as a citizen, not for any organization. Bill also mentioned meeting with Representative Fushi’s staffer, who was knowledgeable and supportive of NASA funding. Dr. Ajay Kothari inquired about the responses from Congress members, and Bill explained that both his representative and Senator Fushi were supportive of NASA funding. They briefly discussed the Senate’s $7.3 billion NASA science budget and how it relates to the $10 billion added by Senator Cruz, which Bill clarified was part of a reconciliation bill outside the normal appropriation process. Bill shared his previous experience participating in NASA advocacy meetings on Capitol Hill, noting that congressional staff generally receive space advocacy messages positively but express concerns about the 47% budget cut proposed by the administration. He explained that while there’s no significant difference in reception between Democratic and Republican-controlled White Houses, the current proposal faces resistance due to the large percentage cut being implemented in one year. The meetings, which involve approximately 300 advocates, are organized by Casey Dreyer and Jack Corrali, with participants completing feedback forms after each meeting to help improve future advocacy efforts. 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 Entertainment Our 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: drspace@thespaceshow.com 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: david@onegiantleapfoundation.org. If 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 89135 Upcoming Programs: Broadcast 4455 ZOOM: Arkisys CEO David Barnhart | Sunday 02 Nov 2025 1200PM PT Guests: ZOOM, Dave Barnhart, CEO of Arkisys updates us with interesting news and developments Get full access to The Space Show-One Giant Leap Foundation at doctorspace.substack.com/subscribe

    1h 5m
  7. Dr. Arun Sharma, Cedars Sinai cardiac researcher with ISS & space research for cardiac tissue and more.

    OCT 31

    Dr. Arun Sharma, Cedars Sinai cardiac researcher with ISS & space research for cardiac tissue and more.

    Dr. Arun Sharma Monday 10-27-25 Space Show Quick Summary: Our program focused on the establishment and operations of Cedars-Sinai’s new Space Medicine Research Center, including its research programs, educational components, and institutional support. Arun discussed their stem cell research initiatives, particularly the creation of 3D heart tissue organoids grown in microgravity on the ISS, and explained their approach to training astronauts and conducting space-based medical research. The conversation covered the potential of AI and telemedicine in space missions, regulatory challenges in stem cell research, and the future opportunities presented by commercial space stations for conducting biomedical research. David and Arun were joined by participant Dr. Sherry Bell. Detailed Summary: David and Dr. Sherry Bell discussed the establishment of the Center for Space Medicine Research at Cedars-Sinai, led by Arun. Arun confirmed the center’s functionality and its institutional support, emphasizing its research and educational components. After Arun was welcomed back to The Space Show to discuss Cedars-Sinai Medical Center’s new Space Medicine Research Center. Arun explained that the center, established about a year ago, builds on their 10 years of work in stem cell and biomanufacturing research, including 8 missions to the ISS. He noted that the center has both research and educational components, offering courses in space medicine and biosciences as part of their master’s and PhD programs. Arun emphasized their institutional support and goal to become an academic partner for the growing private space industry in Los Angeles. Arun discussed Cedars’ expansion beyond cardiovascular focus to broader biomanufacturing and space research, with plans to establish a clinical arm leveraging their hospital’s expertise. He mentioned ongoing conversations with local space industry players in LA, though details are not yet public. Arun also outlined their vision for a comprehensive space medicine program, including pre-flight workups, in-flight diagnostics, and post-flight checkups, while acknowledging the need for space medical training for their network of providers. Arun further discussed his research on 3D heart tissue, or cardiac organoids, created from induced pluripotent stem cells (iPSCs). He explained that these tissues are grown in microgravity on the ISS, as microgravity may improve their growth compared to simulated microgravity on Earth. Arun clarified that the iPSCs and necessary chemicals were launched on SpaceX 33 in August and are now orbiting Earth. David inquired about astronaut training, and Arun explained that they work with engineers and partners like BioServe Space Technologies to train astronauts, as most are not life scientists. Arun expressed a desire for more direct communication with astronauts in the future. The discussion then focused on stem cell research and space medicine training. Arun explained that stem cells are sourced from de-identified donor samples at Cedars-Sinai, with consent for medical research use. The long-term goal is to create patient-specific bioengineered organs, starting with heart tissues, though this remains an area of ongoing research. Arun clarified that the initial training program will focus on biosciences for research scientists, with plans to expand to clinical training in the future. Arun did talk about the potential of AI and telemedicine in supporting deep space missions, emphasizing the value of human-focused research over animal studies. He clarified that his lab uses patient-specific stem cell models, focusing on human biology, and does not work with embryonic stem cells. Arun also addressed the cost and funding challenges of conducting research in space, mentioning partnerships with government agencies and the need to explore alternative funding sources for future collaborations. David inquired about simulating microgravity studies, to which Arun explained that while some ground-based simulations exist, they do not perfectly replicate the conditions of true space microgravity. Arun explained that the stem cell research at Cedars Space Lab involves creating three-dimensional organoids to study human biology and potentially identify new drugs, but emphasized that these cells cannot be transplanted back into people due to ethical and regulatory constraints. He clarified that the research is outcome-oriented, focusing on whether stem cells can be improved in space, with the goal of creating better models for understanding heart development and drug efficacy. David raised concerns about potential regulatory differences between countries, particularly regarding stem cell research, and Arun acknowledged that while the US has strict guidelines, some international research may go unpublished, making it difficult to track all ongoing work in this field. Arun discussed his work as a stem cell biologist and highlighted the potential of space biology research, mentioning a recent publication by UC San Diego on growing cancer cells in space. He expressed concerns about the transition from the ISS to commercial space stations, acknowledging the ISS’s valuable contributions to research but seeing an opportunity for the commercial industry to fill the gap. Arun also considered the possibility of conducting research on a commercial space station, emphasizing the potential for more biomedical researchers in space and the possibility of accelerated training in a private space capacity. He expressed interest in the idea of conducting his own research on a private space station, such as SpaceX’s Starship, and noted the importance of access and opportunities for further research. Arun discussed the differences between microgravity and partial gravity environments in space, highlighting the potential for developing unique therapeutic options that may only be applicable in space. He explained that while some treatments could be brought back to Earth, others might require patients to travel to space for treatment. Arun also touched on the current state of stem cell research, including clinical trials for various applications, and expressed optimism about future advancements in bioprinting and organoid manufacturing in space. He emphasized the importance of personalized medicine using patient-specific stem cells and encouraged continued interest in both stem cell and space biology research. Be sure to see the video of this program at doctorspace.substack.com. 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 Entertainment Our 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: drspace@thespaceshow.com 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: david@onegiantleapfoundation.org. If 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 89135 Upcoming Programs: Broadcast 4455 ZOOM: Arkisys CEO David Barnhart | Sunday 02 Nov 2025 1200PM PT Guests: ZOOM, Dave Barnhart, CEO of Arkisys updates us with interesting news and developments Get full access to The Space Show-One Giant Leap Foundation at doctorspace.substack.com/subscribe

    1 hr

Ratings & Reviews

4
out of 5
11 Ratings

About

The Space Show® focuses on timely and important issues influencing the development of outer-space commerce and space tourism, as well as other related subjects of interest to us all. doctorspace.substack.com

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