About Centradiant

Centradiant Space Systems is developing next-generation thermal management technology for orbital computing infrastructure. Our core innovation, the spinning disk liquid droplet radiator, solves the fundamental thermal bottleneck that has prevented large-scale compute deployment in space.

The space computing market is accelerating. SpaceX, Starcloud, Google, and others are racing to deploy compute in orbit. But every serious architecture study hits the same wall: heat dissipation in vacuum. Traditional radiator panels mass 25–35 kg per kilowatt of thermal energy rejected, making orbital data centers economically impractical.

Liquid Droplet Radiators (LDRs) have been studied since the 1980s as a potential solution. The physics is compelling: spray hot fluid into space as tiny droplets, let them radiate heat to the cosmos, then recollect them. The problem has always been collection. Previous designs relied on electromagnetic steering or electrostatic charging, adding complexity, mass, and failure modes.

Centradiant's breakthrough is deceptively simple: use centrifugal force. A slowly spinning disk (2 RPM) creates 0.045g at the rim, enough to passively drive droplets outward to a dual-layer mesh collector. No magnets. No charging. No parasitic power. The centrifugal force itself acts as the collection mechanism.

The result: 4.1 kg/kW(th) under conservative assumptions, 8–11× lighter than state-of-the-art panel radiators, achieved with a mechanically simple, passively-collecting system. Five of nine subsystems have direct ISS space heritage. Even in the worst case, the system transforms the economics of orbital computing.