Orbit · The vacuum is the crucible
In vacuum, heat is only what you can radiate. ThermoEdge designs the compute to the limit that forces the question. The same core deploys in every easier envelope.
I · The single metric
Every architectural choice is priced by this product. Lower it — the choice is in. If a choice does not lower it, it does not ship.
In vacuum the metric sharpens, because heat is not a standalone cost. Heat is the head of a mass cascade: every watt drags a radiator, an array, a coolant loop, a propellant tank, and the launch mass to lift all of it. Cutting joules-per-op multiplies down the entire spacecraft budget, not just the thermal subsystem.
II · The dissipation ladder
Thermodynamic optimization is not chasing the Landauer floor. It is removing absolute dissipation, in descending order of magnitude, with the floor as the asymptote the cost surface measures against.
Data movement between memory and compute. Idle and standby. The emulation tax of running math on a general-purpose stack. And, on any link, the cost of transmitting a bit.
Architectural answer
In-memory compute (no movement). Event-driven operation (no idle). A microkernel with math as hardware primitives (no emulation). Decisions-not-data downlink (no needless transmission).
Every conventional gate charges and discharges a capacitor each cycle. The charge becomes heat. This is the largest order-of-magnitude lever available before approaching the floor.
Architectural answer
Adiabatic / reversible logic recovers a fraction of the switching energy through resonant clocking. Recovered energy is energy never radiated.
Conventional memory leaks power to retain state. DRAM refreshes. SRAM holds. A node that sleeps still draws.
Architectural answer
Unified persistent memory: non-volatile under the address space. A power cycle preserves every byte. Sub-mW idle. No refresh, no retention tax.
The thermodynamic lower bound for erasing one bit. Real silicon today runs roughly 10⁹–10¹¹× above it. The floor is a far asymptote, not a near target.
Architectural answer
Logical reversibility, in principle. Approached only after the first three rungs are largely solved. The cost surface measures distance to this floor and minimizes absolute dissipation against it.
III · The mass cascade
The only way to shed heat from a spacecraft is to radiate it. The Stefan–Boltzmann law sets the rate, and every term in the spacecraft budget scales with it.
Radiative cooling — the only mechanism
The rate goes as the fourth power of temperature. A part rated for 100 °C junction sheds heat at well over 2.5× the rate of one held at room temperature, on the same area. Running the silicon hot makes the radiator small. The single largest lever on radiator area — and one ThermoEdge owns, because the silicon is ours.
Design choice: high-junction-temperature silicon (≥90–100 °C)
A watt of compute drags the whole spacecraft
Cut the compute joule and the entire cascade shrinks. The demand-side lever is worth more in vacuum than anywhere else — precisely because the supply-side tail is longest there.
IV · The comms forcing function
The link budget is a physical law before it is an engineering choice. Free-space loss, channel capacity, and antenna gain put a hard joule price on every delivered bit. On a small spacecraft, the comms term is frequently the single largest dissipation source.
The architectural response: never transmit what you can avoid. Compute the inference at the data source. Emit the decision, not the raw stream. Wake on event, sleep otherwise. Compute-at-edge is a comms-energy lever first, a latency lever second.
V · The crucible
A node engineered to close its energy and heat budget in orbit closes it trivially in every gentler envelope — at the harvested edge, in a sealed pod, on the side of a road. The orbital cubesat is the universal node wearing a spacecraft bus.
The system on module — reversible logic, in-memory analog compute, unified persistent memory, on-die energy harvesting.
tesilicon.thermoedge.ai →The same core, deployed along every American mile. Energy, compute, and communications from one integrated install on existing infrastructure.
corridor.thermoedge.ai →Unified Design Architecture — one artifact, one design, one team. The frame under which a vacuum-closing node can ship at all.
uda.thermoedge.ai →