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Timestamps are as accurate as they can be but may be slightly off. We encourage you to listen to the full context.
This episode features a TWIST 500 interview with Orbital Operations, a space tech startup building "space tugs" to move satellites in orbit. CEO Ben Schleuniger discusses their innovative cryogenic orbital maneuvering vehicle called Astraeus, which solves the problem of movement in space using super-efficient propulsion systems. (02:56)
• The main theme centers on solving space logistics through advanced refrigeration technology to store cryogenic fuels in orbit, enabling reusable space vehicles for defense and commercial applications
Co-founder and CEO of Orbital Operations, part of the Winter 2025 Y Combinator batch. Ben comes from a launch vehicle background, bringing expertise in cryogenic propulsion systems and space defense applications to the startup space.
Host and technology journalist covering startups and emerging tech. Alex has extensive experience analyzing space startups and is a self-described science fiction enthusiast with particular interest in the commercialization of space.
Orbital Operations focuses on solving the "movement problem" in orbit - getting satellites from low Earth orbit to higher positions efficiently. (03:47) Just as reusable rockets transformed launch economics, creating reusable orbital vehicles can revolutionize space logistics. The key insight is identifying bottlenecks in existing systems and building solutions that eliminate disposal costs while maximizing efficiency.
Rather than reinventing propulsion from scratch, Orbital Operations uses proven rocket engine technology combined with breakthrough refrigeration systems. (11:13) This approach reduces technical risk while solving the core innovation challenge - keeping cryogenic fuels cold in space. The lesson: combine established, reliable components with your unique innovation to create competitive advantage.
Orbital Operations designed their technology to serve both commercial logistics and defense applications. (27:01) The government actively seeks dual-use technologies that aren't solely dependent on military contracts. This strategy diversifies revenue streams and creates multiple paths to profitability while accessing substantial defense budgets.
Despite needing $150-200 million to reach their first operational vehicle, Orbital Operations secured strong early traction with $1.4 billion in commercial letters of intent. (21:42) When solving fundamental infrastructure problems, higher capital requirements can be justified by enormous market potential and competitive moats.
Orbital Operations' vehicles are designed as "mostly propellant" - resembling rocket third stages more than traditional satellites. (19:15) Their innovative approach uses water electrolysis for refueling, splitting water into hydrogen and oxygen in orbit. This creates a sustainable operational model where vehicles can complete multiple missions rather than being disposable.