Eye of the Dragon

Balerion Principal Emerson Garnett sits down with Richard Nederlander, Founder & CEO of Spargo Space, to discuss orbital refueling depots and infrastructure-scale logistics. Spargo Space is focused on building depot-based refueling infrastructure that can support long-duration satellites, space stations, and future cislunar logistics by storing propellant in strategic orbits and supplying last-mile refuelers. Nederlander explains why in-space refueling is becoming economically relevant now, how Spargo fits alongside tugs and servicing vehicles rather than competing with them, and why hydrazine depots could become a foundational layer of the emerging orbital economy before larger cryogenic systems arrive.

00:00 – Introduction to Richard Nederlander, Spargo Space, and the case for refueling as foundational infrastructure for a circular space economy.

01:15 – What in-space refueling means in practical terms for satellite operators and mission designers, and how last-mile refuelers work.

02:16 – Why now is the right moment for orbital refueling, given the rise of commercial space stations, logistics modules, and sustained on-orbit infrastructure.

03:34 – Where Spargo fits in the value chain: depot-based refueling, strategic propellant storage, and support for last-mile refuelers.

05:07 – Reliability-first design considerations, including fluid transfer, docking interfaces, and rendezvous and proximity operations.

06:23 – The logistics challenge of supplying fuel to many spacecraft across different orbits and ensuring steady availability.

07:24 – Where humans remain in the operational loop, particularly for monitoring orbital debris and constellation traffic.

08:10 – Why Spargo is initially focused on hydrazine and the challenges of storing cryogenic propellants in orbit.

09:03 – Early customer beachheads, from Space Force initiatives to commercial constellations and potential space-based data infrastructure.

10:19 – Business model options: dedicated depots funded by single customers versus fuel sold by the kilogram to multiple operators.

11:13 – What integration looks like for satellite operators today, including docking ports and mission architecture decisions.

12:08 – Questions around fuel measurement, licensing, insurance, and the evolving regulatory environment for orbital logistics.

14:17 – What investors often misunderstand about in-space refueling and why the market signal is only emerging now.

15:50 – Spargo’s differentiation: adapting proven terrestrial refueling systems rather than building an entirely new architecture from scratch.

16:45 – Near-term milestones, including testing RPOD software using Astrobee on the International Space Station.

17:37 – The 2030 vision: multiple depots across LEO and GEO enabling a decentralized orbital logistics network.

19:05 – Pricing dynamics, launch cost sensitivity, and how refueling could change satellite design and mission economics.

20:45 – Why long-duration satellites and orbital data infrastructure may become the first large-scale users of refueling services.

22:17 – Depot sizing and the rationale behind Spargo’s 2,000-kilogram hydrazine depot concept.

23:01 – Why maneuverability and persistence make refueling attractive for Space Force satellite operations.

24:18 – Strategic considerations, including access by allied nations and the deterrence dynamics of orbital infrastructure.

27:03 – Designing for reliability in space: radiation, thermal cycling, debris, and material durability.

29:29 – Signals investors should watch that indicate the orbital refueling market is becoming real.

30:28 – Why tugs, servicing vehicles, and refuelers are better viewed as customers and partners rather than competitors.

32:01 – Long-term expansion toward cryogenic fuel depots as energy infrastructure in space grows.

34:08 – Testing philosophy: simulations, hardware testing, and on-orbit experimentation to uncover unknown failure modes.

35:17 – Capital intensity in space infrastructure and why early missions serve primarily as proof-of-concept demonstrations.

36:47 – What satellite designers should do today to ensure their spacecraft are refueling-ready.

37:57 – How Spargo integrates AI across design, modeling, and operational software.

38:35 – Building partnerships across docking systems, refueling vehicles, and satellite operators.

40:07 – Closing takeaway: in-space refueling is moving from a technical demonstration toward a necessary layer of infrastructure for sustained orbital operations.

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com

Balerion Principal Emerson Garnett sits down with Alex Grant, Founder & CEO of Magrathea, to discuss rebuilding Western magnesium production and securing a critical materials supply chain. Magrathea is developing a new electrolytic process to produce carbon-neutral magnesium metal from seawater and underground brines, aiming to restore production capacity outside China. Grant explains how China came to dominate global magnesium supply, why that creates strategic vulnerabilities for aerospace, defense, and manufacturing, and how Magrathea’s technology and industrial partnerships could enable the United States and its allies to rebuild a critical part of the industrial base.

00:00 – Introduction to Alex Grant, Magrathea, and the strategic importance of magnesium for aerospace, automotive, and defense supply chains.

01:00 – Grant’s background in chemical engineering, lithium extraction, and industrial process development prior to founding Magrathea.

03:00 – Why magnesium is a foundational industrial metal: strengthening aluminum alloys, enabling titanium production, and supporting the defense industrial base.

05:00 – How China came to dominate global magnesium supply through industrial policy, export incentives, and long-term price suppression.

09:00 – Legacy magnesium production technologies: coal-heavy thermal reduction versus electrolytic production from magnesium chloride.

12:30 – Magrathea’s key technical breakthrough in magnesium chloride dehydration and why that step historically limited electrolytic production.

16:00 – Pilot plant progress in Oakland and the validation work conducted with support from the U.S. Department of Defense.

19:30 – The Defense Production Act Title III program and how federal partnerships helped accelerate Magrathea’s development.

23:00 – The Arkansas joint venture with Tetra Technologies and the industrial synergies between bromine extraction and magnesium production.

27:00 – National security implications if Western countries fail to rebuild domestic magnesium production capacity.

31:00 – Commercial demand for magnesium across aluminum producers, aerospace suppliers, and defense contractors.

34:30 – The economics of magnesium production, including energy costs, pricing dynamics, and long-term cost targets.

38:00 – Why Magrathea’s process can operate with brines or seawater and how future plants could scale globally.

41:30 – Permitting, environmental considerations, and why lower-emissions processes matter for building industrial projects in the West.

45:00 – Intellectual property, trade secrets, and Magrathea’s long-term technological moat.

48:30 – Scaling strategy: demonstration plant, commercial facilities, and the roadmap for rebuilding magnesium production in the United States.

52:00 – Closing takeaway: restoring magnesium production is both an industrial and national security priority, and Magrathea aims to build the first major new Western supply in decades.

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com

Balerion Senior Associate Aidan Daoussis sits down with Eduardo Neeter, Founder & CEO of HyperTunnel, to discuss immersive expert collaboration for frontline work. HyperTunnel helps organizations deliver expertise to the point of work by enabling frontline teams to collaborate with remote subject matter experts through immersive, spatially accurate digital environments. Neeter explains how the platform combines augmented reality in the field, virtual reality for remote experts, spatial knowledge capture, and emerging AI support to reduce downtime, improve execution, and preserve critical operational expertise across aerospace, defense, energy, and other complex environments.

00:00 – Introduction to HyperTunnel and the company’s core mission: bringing expert guidance to the point of work through immersive collaboration.

00:48 – Neeter explains the basic workflow: a technician captures a worksite as a digital twin, while a remote expert joins through VR and collaborates as if physically present.

04:26 – How the system works in practice for technicians, including annotations, gestures, voice, video, and context-rich guidance inside the shared workspace.

06:12 – Real-time updating of the digital twin as work progresses, including rescanning during active maintenance or repair tasks.

08:04 – Hardware flexibility: the platform can work across iPhones, iPads, head-mounted devices, VR headsets, and even other connected camera sources.

10:00 – Current use case in aircraft maintenance with the U.S. Air Force, particularly supporting KC-135 crews when expertise is not physically available at the aircraft location.

12:14 – How the system could extend to OEM support for new aircraft or unfamiliar systems, with outside experts and technical documentation brought directly into the shared environment.

14:10 – Long-term AI opportunity: using spatially recorded real-world work sessions to train systems that can guide technicians, recognize actions, and help prevent errors.

16:08 – What gives HyperTunnel a durable moat: patented technology, proprietary spatial knowledge capture, and real-world datasets generated from live troubleshooting scenarios.

17:44 – The company’s expansion path beyond aerospace and defense, including roots in Department of Energy projects and additional applications in utilities, oil and gas, and logistics.

20:48 – Synchronous versus asynchronous collaboration: how experts can guide work live or review spatial recordings later in low-bandwidth or contested environments.

23:00 – Current hardware landscape and why HyperTunnel remains hardware agnostic as AR and VR devices continue to evolve.

27:16 – Why the company is focused more on real-time troubleshooting than training alone, especially in high-value environments where delays are costly.

31:25 – Neeter’s view of the future of factory and field work: fewer humans doing repetitive production tasks, but continued need for human expertise in maintaining and restoring complex systems.

35:22 – Reflections on the company journey so far, including underestimated challenges around hardware adoption, generational user behavior, and long enterprise sales cycles.

40:15 – Revenue mix and go-to-market thinking: using defense traction and non-dilutive support early, while expecting long-term commercial growth to exceed government demand.

45:08 – Why HyperTunnel can become much larger than a niche maintenance tool, including its potential role across multiple industries and eventually as an AI-enabled expertise platform for frontline workers.

49:16 – Closing thoughts: HyperTunnel is looking for strategic relationships in industries like energy and beyond as it expands its reach.

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com

Balerion Principal Emerson Garnett sits down with Andrew Rush, Co-founder & CEO of Star Catcher, to discuss building the first power grid in space. Star Catcher is developing an orbital energy network that wirelessly transmits concentrated solar power to satellites using their existing solar arrays, with no retrofit required. Rush explains why power remains a core bottleneck in space operations, how Star Catcher’s optical power-beaming architecture works, and why abundant on-orbit energy could enable more capable satellites, orbital data centers, and future space infrastructure.

00:00 – Introduction to Andrew Rush, Star Catcher, and the company’s mission to build orbital power infrastructure.

00:22 – Rush reflects on his path from patent law to Made In Space, Redwire, and ultimately Star Catcher.

02:18 – High-level overview of Star Catcher and why the company is focused on solving power scarcity in orbit.

04:02 – How the Star Catcher network works, including power nodes, Fresnel lens collection, multi-wavelength lasers, and delivery to existing satellite solar arrays.

07:39 – Ground demonstrations of the technology, including tests at the Jacksonville Jaguars stadium and Cape Canaveral that exceeded the DARPA optical power transfer record.

09:22 – The most power-constrained customer segments today, including direct-to-cell operators, SAR companies, hosted payload providers, and compute-heavy spacecraft.

12:03 – How Star Catcher structures power purchase agreements and why terrestrial power-market models provide a useful template.

13:13 – Why orbital data centers are a natural customer segment and how external power beaming could make standard spacecraft buses support far higher loads.

15:55 – Market demand, signed letters of intent, and the scale of the potential power offtake opportunity.

19:01 – A key customer insight: most early users want higher concentrations of power while sunlit, not just backup during eclipse.

21:50 – Why existing solar arrays can absorb Star Catcher’s beams effectively, and how wavelength selection improves conversion while limiting thermal burden.

24:15 – Rush’s view that a strong commercial LEO economy must come before a true cislunar economy, and how orbital power infrastructure could serve as an enabling layer.

26:27 – The next major technical milestones, including in-space acquisition, tracking, and useful power transfer demonstrations.

29:42 – What scaling looks like from a single power node to a power band and eventually broad LEO coverage.

34:13 – Where the largest long-term demand may come from, with telecommunications first, then compute, data, manufacturing, and human activity in space.

36:36 – How Rush thinks about public-private partnership, responsible operations, and why orbital infrastructure companies must move in disciplined, commercial steps.

42:13 – What new mission classes become possible when power is no longer the dominant bottleneck, including longer-lived satellites, smaller solar arrays, and more dynamic spacecraft operations.

49:49 – Where Rush still sees white space in orbital infrastructure, especially in true in-space manufacturing applications rather than just the platforms that host them.

51:01 – Closing thoughts on Star Catcher’s hardware-rich, crawl-walk-run strategy and its ambition to make power infrastructure in space foundational to the next phase of the space economy.

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com

Balerion Senior Associate Aidan Daoussis sits down with Eric Hostetler, Founder & CEO of Volund Manufacturing, to discuss attritable jet engines and rebuilding U.S. defense manufacturing. Volund is developing the next generation of made-in-USA attritable jet motors, designed to power long-range drones and low-cost cruise systems at scale. Hostetler explains how his background in high-volume consumer manufacturing shaped Volund’s approach, why the U.S. defense industrial base struggles to manufacture propulsion systems at scale, and how vertically integrated, software-defined factories could dramatically reduce the cost and lead time of critical defense hardware.

00:00 – Introduction to Eric Hostetler, Volund Manufacturing, and the broader challenge of rebuilding U.S. defense manufacturing capacity.

01:10 – Hostetler’s background in high-volume consumer manufacturing and how that experience shaped his perspective on design for manufacturability.

03:20 – Why Volund chose jet propulsion: the gap in scalable, attritable engines for long-range drones and missile-class systems.

06:40 – Turbojets versus solid rocket motors, and why air-breathing systems may be better suited for certain low-cost, long-range defense applications.

08:15 – Demand signals from new U.S. defense programs, including the widening gap between propulsion demand and current supply.

10:00 – Why traditional approaches to scaling manufacturing fall short, and how Volund is thinking differently about cost, automation, and defense-scale production.

12:45 – Rebuilding turbine manufacturing from first principles through tight integration between engineering, materials selection, and factory execution.

17:15 – What wartime surge manufacturing really looks like, and why bottlenecks often sit deep in the industrial supply chain.

19:30 – Lessons from offshore and vertically integrated manufacturing systems, and why Hostetler believes product-focused factories outperform fragmented supply chains.

23:30 – How software can improve defense manufacturing, from traceability and compliance to factory data systems and continuous improvement.

26:15 – Volund’s moat: software-defined manufacturing, scalable engine design frameworks, and integrated factory infrastructure.

30:05 – The military risk picture if the U.S. fails to rebuild manufacturing depth for propulsion and munitions.

35:40 – Where Volund is today: prototype engine work, secure digital factory systems, and building the engineering team.

39:05 – Customer strategy: why non-traditional defense contractors may be the earliest adopters, followed by larger primes.

44:00 – Long-term vision: Volund as a vertically integrated manufacturing partner for defense hardware, similar in role to a specialized Foxconn for aerospace and national security.

52:25 – Closing takeaway: Volund is working to demonstrate a new way to produce defense articles at speed, scale, and lower cost.

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com

Balerion Senior Associate Aidan Daoussis sits down with Joseph Pawelski, Co-founder & CTO of CisLunar Industries, to discuss power infrastructure for space. CisLunar Industries is a space technology company focused on building scalable, intelligent hardware that transforms power to run space. Pawelski explains why power is the foundational bottleneck for satellites, electric propulsion, lunar industry, and future orbital infrastructure, and how CisLunar’s modular power systems are designed to enable higher-performance spacecraft, line-replaceable upgrades, and eventually the power architectures needed for cislunar logistics and lunar operations.

00:01 – Introduction to the webinar and CisLunar Industries’ mission: building scalable hardware that transforms power to run space.

00:40 – High-level explanation of the company: converting raw spacecraft power into usable forms for buses, propulsion systems, and payloads.

01:23 – Pawelski’s background in thermal fluids and high-speed manufacturing, and the original motivation for founding CisLunar Industries.

02:17 – The company’s early focus on in-space metal processing, lunar materials, and industrial infrastructure for off-world development.

03:00 – Why the company shifted from metals and foundries toward power systems as the true foundational layer of space industry.

04:05 – What spacecraft power systems looked like before CisLunar: bespoke, low-volume, long-lead-time hardware with limited flexibility.

04:57 – CisLunar’s modular “Lego-like” approach to spacecraft power systems and why standardization matters for scaling space hardware.

06:16 – Description of the product as a compact module that improves efficiency and reduces thermal burden on spacecraft.

06:28 – Why higher-efficiency power electronics matter: lower heat loads, simpler integration, and improved spacecraft performance.

07:20 – What more power unlocks in practice, including propulsion, sensing, communications, and data throughput.

07:54 – Power requirements for future defense sensing architectures such as Golden Dome and why radar performance scales with available power.

08:25 – How higher-power electric propulsion changes spacecraft maneuverability and begins to rival traditional chemical propulsion in responsiveness.

09:35 – LEO-to-GEO and other high-energy transfers with electric propulsion, and how higher power can reduce transfer times from months to days.

10:20 – The role CisLunar could play in future infrastructure such as space-based solar, orbital data centers, lunar industry, and directed energy systems.

10:43 – Directed energy and power beaming as dual-use technologies that can dramatically augment spacecraft power availability.

12:08 – Discussion of early customer segments, including commercial satellite operators, defense-related programs, and emerging orbital infrastructure providers.

12:50 – Space stations, tourism, and other commercial orbital systems as future beneficiaries of modular high-power architectures.

13:26 – How CisLunar’s modular design philosophy can scale from small satellites to larger platforms such as stations and other high-power systems.

14:31 – Major company milestones, beginning with NASA work on space debris processing and electromagnetic induction furnace technology.

14:58 – Early breakthrough: using electromagnetics to levitate and manipulate molten metal in vacuum, creating a foundation for later power applications.

15:17 – Turning one of the company’s electromagnetic systems into a Hall thruster power processing unit in just a few weeks.

15:39 – Progress to date with multiple Hall thrusters and ongoing work to integrate solar power conversion and propulsion power systems into a single architecture.

16:23 – Discussion of nuclear fission, nuclear electric propulsion, and the company’s involvement in SPAR, a 100-kilowatt nuclear-electric propulsion effort.

17:25 – How the same power-conversion technologies for nuclear electric propulsion can also support lunar surface nuclear power systems.

18:13 – Why megawatt-class lunar power is the threshold where in-situ resource utilization begins to make economic sense.

18:53 – CisLunar’s role in future fission-powered lunar infrastructure: acting like the “General Electric” of space power distribution and conversion.

19:02 – Visual explanation of how reactor-generated electrical output would be converted, stepped up, transmitted, and managed for multiple loads.

20:20 – The need for high-voltage conversion, efficient transmission, and energy storage to make lunar power grids practical.

21:02 – Pawelski’s view of the market: total power on orbit may need to increase 20x by 2030, even before accounting for data centers.

22:26 – Why power demand in space is likely to grow exponentially, mirroring long-term growth in terrestrial energy consumption per person.

22:44 – The chronological order of likely power-hungry applications: sensing, dynamic maneuver, hybrid propulsion, and eventually lunar industry.

23:16 – Power requirements for synthetic aperture radar, missile defense sensing, and “maneuver without regret” architectures.

24:18 – The long-term shift toward lunar-sourced resupply, refueling, and industrial support for satellites and deep-space systems.

25:22 – Reflection on whether this time is different from prior lunar industrial visions and why current launch economics and public interest may make it real.

26:26 – Discussion of orbital data centers, launch-cost constraints, and the thermal-management challenge of computing in space.

27:20 – Why thermal rejection, not just launch cost, is a major bottleneck for orbital data centers.

28:02 – Edge compute in GEO, lunar orbit, and other remote environments as a more immediate and practical use case for space-based computing.

29:11 – Vision of a future with multiple specialized stations, refueling depots, service nodes, and transportation links throughout cislunar space.

30:00 – Timeline for early orbital servicing, refueling, and augmentation systems to become standard operating infrastructure around 2030.

30:31 – Line-replaceable units as a near-term step toward true on-orbit servicing and spacecraft maintenance.

31:44 – Analogy to terrestrial hotels and logistics systems: sustainable space habitation requires deep supporting infrastructure in power and transport.

33:00 – How the company balances near-term revenue with longer-horizon infrastructure ambitions.

33:23 – Shift in the business from predominantly government-funded work toward a largely commercial revenue base.

34:00 – The strategic importance of swappable propulsion and power modules as future integrated products.

34:33 – Dual-use opportunities in defense, resilient on-orbit power, and why CisLunar sees itself as a “picks and shovels” supplier for the coming space buildout.

35:17 – Directed energy and power-beaming as an increasingly accepted category, and CisLunar’s role as enabling hardware provider rather than end operator.

36:02 – Line-replaceable units as a practical procurement pathway for defense customers.

36:36 – Thoughts on whether solar panels will remain dominant in cislunar space versus the growing role of fission, fusion, and beamed power.

37:39 – Why solar remains hard to beat near Earth and the Moon, even as nuclear options become more attractive for certain missions.

38:57 – Lunar hotels and settlement: power, logistics, servicing, and transportation as the stepwise foundations for eventual tourism and sustained habitation.

40:35 – A terrestrial analogy for the progression of space infrastructure: from frontier caravans to railroads to highways.

41:57 – Audience question on other “pick and shovel” opportunities, including sensing, x-rays, directed energy, quantum imaging, and nuclear electric propulsion.

43:45 – Whether CisLunar can keep up with demand as the industry scales and whether power-conversion hardware becomes standard on most spacecraft.

44:22 – Comparison to prior manufacturing experience: scaling robust hardware far beyond competitors and potentially becoming the default supplier.

45:22 – Supply-chain strategy, including onshoring critical semiconductor components to reduce risk.

46:20 – Near-term roadmap: launches, Hall thruster PPUs, high-voltage systems, an x-ray payload, and several additional flights already booked.

47:29 – Long-term aspiration to have dozens of systems on orbit within a few years and hundreds by 2030.

47:35 – Framing CisLunar not just as a product company but as a platform capability that could underpin the power grid of future space operations.

48:01 – Potential monetization beyond hardware, including metering and power-management systems for future orbital utilities.

48:33 – Discussion of future competition, why competition validates the market, and why continuous improvement is essential in space.

50:33 – How CisLunar plans to stay ahead through lower cost, better performance, economies of scale, and exposure to demanding edge-case programs.

51:40 – Why solving harder electronics problems in areas like fusion and ultra-high voltage makes the company’s core space products stronger.

52:33 – Closing takeaway: power scales everything in space, and CisLunar’s mission is to transform power to run space.

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com

Balerion Senior Associate Aidan Daoussis sits down with Chris Pearson, CEO of Agile Space Industries, to discuss in-space mobility and chemical propulsion. Agile is a propulsion solutions provider specializing in hypergolic propellants, with thrusters and rocket engines designed, 3D printed, and hot-fired under one roof. Pearson explains why chemical propulsion is seeing renewed demand for high-energy maneuvering missions, how Agile’s vertically integrated manufacturing enables unusually rapid development timelines, and where the company fits across national security space, lunar missions, and emerging commercial orbital infrastructure.

00:00 – Introduction to the episode and overview of Agile Space Industries and its focus on in-space mobility through chemical propulsion.

00:38 – The problem Agile solves: enabling high-energy maneuvering in space where electric propulsion cannot meet speed or thrust requirements.

01:23 – Key markets served by Agile: national security space, lunar exploration missions, and commercial launch and orbital transfer vehicles.

02:29 – Why chemical propulsion is regaining importance despite the rise of electric propulsion technologies.

03:02 – Electric propulsion’s role in mega-constellations versus chemical propulsion for fast maneuvers, rendezvous, and high-energy operations.

04:52 – Applications requiring rapid maneuvering, including proximity operations, refueling missions, and defensive spacecraft operations.

05:24 – Why lunar landings and orbital insertion around the Moon still require chemical propulsion.

06:16 – Agile’s role in lunar and cargo missions, including work supporting the European company The Exploration Company.

07:29 – Example of Agile’s rapid development capability: designing and hot-firing a new propulsion engine within ten weeks.

08:21 – Agile’s recent milestones, including strong revenue growth and increasing demand for propulsion systems.

09:23 – Revenue performance: $28M in revenue last year, $60M backlog, and expectations to reach approximately $50M in revenue in 2026.

10:07 – The expanding propulsion market, driven largely by national security missions and increasing orbital infrastructure.

11:20 – Agile’s origin story: beginning as a propulsion testing company before evolving into a propulsion hardware manufacturer.

12:05 – How additive manufacturing enabled Agile to simplify engine designs and drastically reduce component counts.

13:03 – Vertical integration: printing propulsion components, assembling engines, and testing them in-house.

13:39 – The CLPS lunar program as an early catalyst for Agile’s growth.

14:32 – Expansion plans, including a new propulsion testing facility supported by Tulsa, Oklahoma.

15:47 – The $20M investment from Tulsa to build propulsion test infrastructure and foster a regional space industry cluster.

17:01 – Agile’s capital efficiency: roughly $39M raised to date while achieving positive cash flow and strong growth.

17:33 – The interplay between government funding and commercial space demand.

18:16 – Agile’s customer base, including major aerospace primes and emerging commercial space companies.

19:27 – The evolving spacecraft size classes where chemical propulsion adds the most value.

20:48 – High-performance propulsion enabling smaller spacecraft to complete more complex missions.

22:09 – The rise of counter-space and defensive maneuvering missions as a major driver of propulsion demand.

23:33 – Agile’s service business: propulsion testing for other companies and partners.

24:34 – Additive manufacturing services beyond space, including aerospace and underwater systems.

25:48 – Providing turnkey propulsion systems, including tanks, fueling services, and launch-site operations.

26:31 – Development of mobile payload processing units for spacecraft fueling and launch readiness.

27:56 – Agile’s competitive moat: credibility, execution reliability, and strong relationships with integrators and customers.

31:00 – Government priorities shaping propulsion technology development.

32:11 – Agile’s work on multi-mode propulsion systems combining chemical and electric propulsion capabilities.

33:12 – National security implications of maneuverable spacecraft and orbital “dogfighting.”

34:10 – The need for faster propulsion, rapid delivery, and large-scale manufacturing to support future space conflicts.

37:01 – The importance of manufacturing scale as satellite constellations and defense missions expand.

38:38 – Chris Pearson’s career journey from Airbus to multiple space startups and ultimately leading Agile.

41:40 – Why supply-chain companies in space often benefit most from the growth of the broader space economy.

42:21 – Identifying the opportunity in chemical propulsion due to years of underinvestment compared to electric propulsion.

44:26 – Agile’s future: expanding from propulsion components to full propulsion systems.

45:02 – Development of piston-based propellant tanks that eliminate fluid slosh and improve spacecraft stability during maneuvers.

47:00 – Agile’s strategy to integrate propulsion systems earlier in spacecraft assembly.

48:02 – The importance of supplier partnerships and strategic investors in scaling the company.

49:50 – Agile’s Series A funding and the role of strategic investors supporting government and regional relationships.

53:01 – Closing takeaway: Agile’s momentum, strong revenue growth, and expanding propulsion market opportunities.

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com

Balerion Senior Associate Aidan Daoussis sits with John Bucknell, Founder & CEO of Virtus Solis, to discuss space-based solar power and wireless energy transmission from orbit to Earth. The discussion covers the company’s vision for space-based solar power, the economic and technical case for harvesting solar energy in orbit, and how Virtus Solis plans to beam power wirelessly to Earth using radio-frequency transmission. Bucknell also reflects on his path from automotive manufacturing to SpaceX and explains why he believes space solar can become a scalable, firm, clean energy source.

00:00 – Introduction and opening framing of Virtus Solis as orbital energy infrastructure

00:46 – John Bucknell’s high-level explanation of the company: putting solar arrays in space and wirelessly transmitting energy to Earth

03:37 – Bucknell’s career journey from automotive manufacturing to SpaceX and ultimately to founding Virtus Solis

08:52 – The history of space-based solar power, why earlier concepts stalled, and why Bucknell believes the economics have now changed

14:59 – What Virtus Solis looks like in practice: modular satellite “tiles,” in-space assembly, and kilometer-scale orbital arrays

19:45 – How the system is controlled: autonomous satellites, coordinated beamforming, and ground-station handshakes for precise targeting

21:14 – Ground infrastructure and deployment model: what receiving stations look like, how much land they require, and how they connect to the grid

23:10 – Orbital data centers and cislunar applications: using space-based power to serve assets beyond Earth

25:11 – Why the company uses a highly elliptical Molniya orbit instead of GEO, plus discussion of debris risk and resilience

29:42 – Launch strategy and scale: compatibility with multiple launch providers, though Starship remains central to the economic case

30:54 – Competitive landscape in space solar and why Virtus Solis chose radio-frequency transmission over laser-based approaches

34:13 – Development timeline: pilot plant in roughly 24 months, first commercial deployment targeted around 2030, and long-range scaling ambitions

36:02 – Comparison with nuclear energy and fusion: Bucknell’s view on why space solar may scale faster despite his background in nuclear engineering

40:54 – Why the company is building its manufacturing base in Detroit, with emphasis on supply chain, talent, low-cost factory space, and shipping advantages

45:02 – Nearer-term revenue opportunities before full-scale orbital power plants, including wireless power transfer, grid resilience, and mobile power applications

47:37 – Conservative versus sci-fi visions of success, from large EBITDA infrastructure business to a trillion-dollar global energy platform

50:01 – How far the system can beam power, including possible applications for the Moon, Mars, and even Venus

52:03 – Solar pressure, orbital control, and the physics of very large structures in space

53:17 – Bucknell’s view on Kessler syndrome, orbital congestion, and why smart autonomous systems reduce the long-term collision risk

56:16 – Closing takeaway and live demo: wireless power transfer already works, and the remaining challenge is commercial scale-up rather than scientific invention

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com

Balerion Senior Associate Aidan Daoussis sits down with Deborah Space founders Betina Reyna and Danna Linn Barnett to discuss satellite collision avoidance. Deborah Space is building an on-prem software platform for satellite operators that prioritizes collision alerts, recommends tailored maneuvers, and supports threat and anomaly detection. The company’s thesis is that as orbital density rises, operators will need faster decision support that uses sensitive mission data without requiring that data to leave the ground segment.

00:00 – Introduction, Betina Reyna joins from Tel Aviv, and the founders describe the company’s name and mission

03:18 – Danna introduces her background in satellite programs and long-standing work in space sustainability

04:36 – Founding story: Deborah Space emerged from a Google and Israeli military space-unit hackathon focused on collision prevention

07:30 – Early product insight: operators receive collision data messages but still lack practical decision support for mitigation

09:02 – Core thesis: the company aims to sit inside the operator’s ground segment and use mission-specific data to generate tailored recommendations

11:05 – The operational problem at scale: fragmented SSA and flight-dynamics workflows will not hold up as active satellites rise toward 100,000

15:01 – Product architecture: Detect, Direct, and Defend for alert prioritization, maneuver guidance, and threat or anomaly detection

18:56 – Competitive landscape: Deborah Space argues existing solutions address pieces of the problem but do not fully integrate the operator perspective

24:03 – Kessler syndrome, debris risk, and why smarter maneuver planning matters even before a cascading debris scenario occurs

30:20 – Go-to-market strategy: on-prem deployment, shadow-mode validation with operators, and early focus on Israel, Europe, Asia, and India

35:46 – What the company wants from investors: strong alignment, strategic guidance, and a lead investor for a roughly $6 million seed round

37:34 – Milestones after funding: team buildout, defense and commercial POCs, product refinement, and early deployments in customer ground systems

41:41 – Revenue model: pricing by satellite per month or by constellation package, with additional tiers across the product stack

43:18 – Dual-use and export-control considerations, including the company’s intent to stay usable across commercial and defense markets

45:27 – Market outlook and closing takeaway: the founders expect broader constellation growth beyond Starlink and position Deborah as a decision layer for orbital infrastructure

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com

Balerion Senior Associate Aidan Daoussis sits down with Space Phoenix Systems Founder & CEO Andrew Parlock to discuss satellite life extension, in-orbit servicing, and extending the useful life of space assets.

Space Phoenix Systems is developing spacecraft designed to rendezvous with existing satellites and extend their operational life. Rather than replacing satellites when they run out of propellant or experience subsystem degradation, the company aims to service, refuel, and support spacecraft already on orbit. The approach could reduce replacement costs, increase mission flexibility, and help create a more sustainable orbital infrastructure.

In this conversation, Andrew explains the technical architecture behind Space Phoenix’s approach, the economics of satellite life extension, and how on-orbit servicing may become an important part of the future space economy.

00:00 – Introduction and framing the return-to-Earth problemAidan introduces Andrew Parlock and frames Space Phoenix Systems as infrastructure for bringing products back from orbit, not just getting them into space.

00:53 – Andrew’s background and the origin of Space PhoenixAndrew explains how work at Northrop Grumman and exposure to in-space manufacturing revealed the lack of up-mass and down-mass infrastructure.

02:38 – Moving from research to microgravity manufacturing at scaleSpace Phoenix’s thesis is that the industry must move beyond one-off R&D projects and toward repeatable, production-scale manufacturing supported by dedicated logistics.

03:53 – The “49er” strategyAndrew explains the company’s “pick-and-shovel” model: enabling the next industrial revolution in space by selling infrastructure rather than betting on a single product category.

04:19 – Why the market needs far more return capacityAndrew argues the industry has a massive logistics shortfall and that the bottleneck is capacity, not lack of demand.

05:20 – Hermes: simple by designOverview of the Phoenix Hermes vehicle family, built around a proven capsule architecture, ablative return, and commercial off-the-shelf components.

06:57 – Athena and the long-term technology roadmapAndrew explains how the later Athena platform will incorporate more proprietary reentry technology and expand payload capability.

07:31 – What’s driving demand: biotech, semiconductors, and data centersThe conversation shifts to early customer demand, especially in biotech and advanced semiconductor materials, with in-space data centers emerging as another future category.

10:19 – Why manufacture in space at all?Andrew explains the core physical advantages of space manufacturing: hyper-clean conditions, reduced convection, new material possibilities, and much higher yields.

12:12 – The economics of semiconductor manufacturing in spaceExamples such as United Semiconductors illustrate how dramatically better yields in orbit can make microgravity manufacturing economically viable.

12:55 – Power, solar, and why data centers may move into spaceAndrew describes why abundant solar power in space and the economics of carbon reduction could make off-Earth data infrastructure compelling.

15:33 – Return logistics as an unavoidable marketAidan asks how the return market develops over time, and Andrew argues that the industry has no choice but to solve routine, high-cadence return.

16:37 – Regulation, airspace, and landing site constraintsDiscussion of FAA issues, airspace closures, and why Australia, Portugal, and the UAE are attractive environments for reentry operations.

18:46 – The technical side of reentryAndrew explains why reentry is mature physics if the vehicle remains aerodynamically stable and survives the hypersonic-to-subsonic regime.

20:17 – Different reentry architecturesSpace Phoenix plans a fleet using multiple return modes, from ablative capsules to inflatable heat shield systems and later more advanced vehicles.

21:26 – Audience question: Space ForgeAndrew discusses Space Forge, arguing that many manufacturing companies are being forced to build logistics capabilities because the market has not yet matured.

24:04 – Competition versus capacityAndrew argues the biggest issue is not too many reentry companies, but too little capacity for what the market may become.

25:21 – Mission profile and the Hermes capsuleAndrew walks through the Phoenix Hermes spacecraft, including payload mass, heat shield, propulsion, thermal design, and customer payload area.

28:36 – What return looks like operationallyDiscussion of reentry profile, parachute landing, spacecraft recovery, and what the returned capsule may look like physically.

29:57 – Reuse and unit economicsAndrew explains expected reuse, comparisons to Formula One and commercial aviation, and how the economics improve after the first few flights.

31:13 – Landing precision and why regulation matters more than targetingExamples from Varda, SpaceX, and asteroid sample return missions show why Andrew is more concerned about regulation than technical landing accuracy.

33:12 – Scaling payload size: Hermes, Athena, and beyondSpace Phoenix’s roadmap follows a small-medium-large model, with Athena designed for much larger payload return and higher cadence.

35:20 – Could return become a shuttle-like logistics layer?Aidan asks whether future systems could drop off and pick up cargo in orbit. Andrew says rendezvous and station logistics will eventually become necessary, especially for larger vehicles.

37:18 – White-label logistics for commercial stationsAndrew discusses serving commercial station providers directly and enabling return capability before those stations fully mature their own logistics systems.

39:00 – How fragmented will this market become?Andrew compares future return logistics to terrestrial logistics: a few large players plus many specialized providers serving distinct use cases.

42:29 – Why the market may break open in the next 3–5 yearsHe argues that once the economics of space-based semiconductor and pharmaceutical production are widely recognized, demand could accelerate quickly.

43:58 – Company formation, team, and tractionAndrew explains why Space Phoenix has moved quickly despite being young: experienced leadership, market timing, and a focus on proven technology.

46:38 – What becomes possible once logistics is solvedAndrew says the real unlock is specialization: mining companies can mine, semiconductor companies can make semiconductors, and logistics providers can handle transport.

49:32 – The railroad analogy and what new industries may emergeAidan compares orbital logistics to the railroads opening the American West. Andrew agrees and points to biotech, retinal implants, cancer therapeutics, and other still-emerging markets.

53:23 – What to watch over the next 18–24 monthsAndrew says the key development is the coalescing of multiple capabilities into complete, end-to-end deliverable systems for customers.

55:35 – Closing remarksAidan wraps the discussion and Andrew invites listeners to follow up directly or through Balerion.

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com