The exponential growth in power demand from computing makes moving data centers to space a 'no-brainer' due to the availability of abundant solar power.
In-space transportation is the critical next frontier for the space industry, building upon the low-cost Earth-to-orbit access pioneered by companies like SpaceX.
The Moon is the most important near-term celestial body for resource extraction, specifically to address impending terrestrial shortages of materials like copper.
3D printing is a 'cheat code' for developing high-performance rocket engines, enabling complex designs that are crucial for achieving superior efficiency.
A mature, reliable rocket engine is the product of at least three major design iterations, a lesson learned from developing both the Merlin and Raptor engines.
Pre-Impulse Space
As a founding employee at SpaceX, Mueller led propulsion development for the Falcon rocket and Dragon spacecraft. He developed the Merlin engine, which he claims is the most reliable rocket engine ever developed, and learned that it takes three major iterations to mature an engine design.
Founding of Impulse Space
Mueller founded Impulse Space to address what he saw as the next major step in the space industry: in-space transportation. The company's mission is to move payloads from LEO to higher orbits, the Moon, and other destinations.
Current Operations
Impulse Space has successfully deployed three MIRA spacecraft into orbit and demonstrated a rendezvous maneuver. The company is developing the more powerful Helios vehicle and the high-performance Deneb engine, and is supplying the entire propulsion system for the VAST Space Station.
Future Vision
Mueller's discourse is focused on the future capabilities of his systems, such as delivering 5-ton payloads to the Moon and multiplying Mars payload capacity. His long-term vision involves moving data centers to space and mining the Moon and asteroids for critical resources like copper.
▶The In-Space Transportation EconomyJun 2026
Mueller posits that the era of cheap access to LEO, pioneered by SpaceX, has created the need for a new market: in-space transportation. He founded Impulse Space to fill this gap, developing orbital transfer vehicles (MIRA) and more powerful stages (Helios) to move payloads to GEO, the Moon, and Mars.
Investors should view Impulse Space not as a launch provider competitor, but as a 'last-mile logistics' company for space, a potentially massive market if satellite servicing and interplanetary missions scale as predicted.
▶Space as a Solution to Terrestrial Resource ScarcityJun 2026
Mueller argues that the exponential growth of data centers is creating unsustainable demands for power and copper on Earth. He presents space as the logical solution, offering abundant solar power for orbital data centers and vast, untapped resources like copper on the Moon and asteroids.
This theme frames space exploration not just as a scientific endeavor but as an economic and environmental necessity, potentially attracting investment from sectors beyond traditional aerospace, such as energy and materials.
▶Advanced Propulsion as a Core CompetencyJun 2026
Drawing on his experience developing the Merlin engine, Mueller emphasizes that high-performance, reliable propulsion is the bedrock of space capability. He highlights Impulse Space's work on the Deneb engine, using advanced techniques like 3D printing and an ox-rich staged combustion cycle to achieve what he predicts will be record-breaking performance.
Mueller's deep expertise in propulsion is his company's primary technical moat; analysts should closely monitor the development and testing milestones of the Deneb engine as a key indicator of Impulse Space's future success.
▶A Pragmatic Cislunar FocusJun 2026
While acknowledging the potential of missions to Mars and the outer planets, Mueller's near-term focus is squarely on the cislunar environment. He identifies the Moon as more immediately important for resource extraction and sees GEO as a critical commercial destination for large satellites, positioning his Helios vehicle to service these markets.
Mueller's strategy prioritizes existing and near-term commercial opportunities (GEO satellite deployment) and strategic resources (lunar mining) over more speculative, long-term goals, suggesting a more grounded and potentially faster path to profitability.