Halcyon Orbital

Halcyon runs GPU clusters in low earth orbit, powered by constant sunlight and cooled by space itself.

Power from a sun that never sets.

In a dawn to dusk orbit the arrays face the sun almost all year. No grid connection, no night shift, no diesel backup.

Orbit
Sun-synchronous
Shade per orbit
Near zero

Each satellite is a sealed rack.

GPUs, storage and radiators ship as one unit. Heat leaves through panels facing deep space, so no water is drawn from anyone's town.

Cooling
Radiative
Water use
None on site

A mesh, not a monolith.

Laser links pass jobs from node to node. When one unit goes dark, work reroutes to its neighbours before the next ground pass.

Links
Optical, node to node
Failover
Automatic

Book capacity from the ground.

Reserve GPU hours by orbit window. Your job uploads on one pass, runs in orbit and lands back on a later one.

Access
API and console
Billing
Per GPU hour

Main workload