Solar power in orbit is effectively unlimited. Getting rid of heat is not.
Without an atmosphere there is no convection and nothing to conduct heat into. Radiation is the only path out, and it is expensive in both mass and space.
Conventional spacecraft answer this with fixed metal panels. That is workable at the kilowatt scale of a satellite. At the megawatt scale of a data centre it becomes the binding constraint: radiator area is welded to the size of the chassis, so compute density cannot outgrow the platform it sits on.
No convection, no conduction
Thermal radiation is the least mass-efficient way there is to move energy — and in vacuum it is the only one available.
Area tied to the chassis
Panel area scales with electrical power and must be carried by the structure, so the platform sets the ceiling on compute.
Unsolved at scale
No operator has demonstrated heat rejection at megawatt scale. It is the open problem in front of the whole sector.
An order of magnitude, not a percentage
We are not making the panel bigger. We are replacing the principle by which heat leaves the spacecraft, with a system designed from the start for megawatt-class loads.
We are not publishing the technical approach while the patent application is in preparation. For investor, partner or press enquiries we are glad to go into detail under a non-disclosure agreement.
What we are promising operators
Scale-up at a price that works
Launch is priced on mass. Taking the thermal system down by an order of magnitude turns tonnes of radiator into tonnes of payload, and makes the first megawatt-class facilities affordable to fly.
Scalability at all
Beyond a certain power there is no panel design that can be built, folded and deployed. We are building the heat rejection that lets orbital compute keep growing once conventional radiators stop being an option.
Thermal architecture is fixed when a platform is designed, not when it is procured. Once frozen, the interface stays for the life of the platform — which is why we work with operators during design rather than after it.
Founders
Supported by specialists in radiative physics and spacecraft systems engineering, and by advisors from the technology and space sectors.
Get in touch
For investor, partnership or press enquiries. Write to tim.smolnik@thermaorbitsystems.com or use the form. We normally reply within a few working days.
Legal notice
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ThermaOrbit Systems, Inc. Delaware C Corporation, incorporated 24 August 2026
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Jägerstraße 60 33161 Hövelhof Germany
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Legalinc Corporate Services Inc. 131 Continental Drive, Suite 305 Newark, DE 19713, United States
Represented by
Dr. Tim SmolnikSascha Weber
Contact
tim.smolnik@thermaorbitsystems.com
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Delaware Division of Corporations, file number 10745594.
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