About the Lunar Program

The same thermal physics that unlock orbital compute invert on the lunar surface. Waste heat is not a liability at the lunar pole. It is the feedstock.

The Inversion

At the lunar pole, the constraint is not how to reject heat but how to generate it cheaply enough to drive in-situ resource utilization (ISRU) at scale. Existing proposals anchor on heat sources whose only product is heat: RTGs, fission reactors, solar concentrators. None carry an independent revenue mechanism.

Centradiant's lunar program places a revenue-generating GPU compute facility at the head of the ISRU cascade. Compute revenue funds the infrastructure. Waste heat, at 90 °C, drives water extraction, an organic Rankine cycle for backup power, and regolith thermal energy storage.

Why the Pole

Connecting Ridge (89.44°S, 222.69°E), near Shackleton crater, receives approximately 89% annual solar illumination. Permanently Shadowed Regions immediately adjacent sit at 40 to 100 K, providing a passive cryogenic sink for radiator overflow and cold-trap condensation. No other location on the Moon offers this combination.

Relationship to the Orbital Program

The orbital D3 radiator and the lunar thermal cascade share the same foundational physics but are independent programs with independent funding paths. The orbital side is a pathfinder spacecraft. The lunar side is a longer-horizon research and partnership effort. Both are documented openly and reviewed against published literature.