HELION GALACTIC Reserve capacity

Compute, powered by the sun.

Helion Galactic puts AI data centres in orbit. Our satellites hold their solar arrays to the sun almost every minute of the day, run the compute on board, and stream results back to Earth over Starlink.

Reserve orbital capacity → See how it works

AI is outgrowing the grid. Every new data centre on Earth competes for power, water and land. So we're moving compute to where energy never runs out: a dawn‑dusk orbit 550 km up, where the sun never sets and radiators shed the heat straight into space.

From launch padto live inference

1Climbing to a 550 km orbit

Lifted into a dawn‑dusk orbit

Each Helion node rides to a 550 km sun‑synchronous orbit. It follows the line between day and night around the planet, so it is almost never in Earth's shadow.

Arrays turn to face the sun

The spacecraft slews until its solar wings point straight at the sun, then holds there. No clouds, no night, no atmosphere in the way. Just a steady supply of power.

The data centre is on board

Racks of AI accelerators run directly off the arrays. Waste heat flows to radiators that shed it into the cold of deep space, so there are no chillers and no water.

Results come home over Starlink

Optical links hand traffic across the constellation and down to Earth through the Starlink network. To your application, it is just another region with an API endpoint.

Helion‑1.A data centrethe size of a bus.

Every node is a self‑contained compute facility: power plant, server hall and network edge, built into one spacecraft and launched in stacks.

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Design life

A constellationof sunlit compute

Nodes fly in shells of polar orbits, passing work between each other at the speed of light. This is Constellation I, simulated.

Why orbitbeats the ground

 Data centre on EarthHelion node in orbit
PowerDrawn from a strained, mixed gridDirect sunlight for about 99% of every orbit
CoolingChillers and evaporative towersPassive radiators facing deep space
WaterMillions of litres a yearNone
LandHectares, plus planning permissionNone
Time to add capacityYears of grid connection queuesThe next launch window

Missionroadmap

  1. 2027

    HG‑0 Pathfinder

    A single demonstrator node proves sun‑tracked power, on‑board inference and Starlink downlink in orbit.

  2. 2028

    First Light shell

    24 nodes with laser crosslinks open to early‑access customers running production inference.

  3. 2029

    Constellation I

    150 nodes and roughly 20 MW of solar capture, available as a cloud region with standard APIs.

  4. 2031+

    Gigawatt horizon

    Larger nodes, assembled in orbit, take training runs off the grid entirely.

The sun neversets up here.

Reserve compute on First Light. We're onboarding a small group of AI teams ahead of launch.