Sovereign Quantum Infrastructure · Low Earth Orbit

The coldest, quietestplace to run a qubitis not on Earth.

Space-Quantum is building Europe's first orbital quantum computing data centre — where the vacuum is the cryostat, the Sun is the grid, and the qubits finally get the silence they were promised.

The Problem with Earth

Quantum machines fight the planet every nanosecond.

A qubit is the most delicate object humans have ever tried to control. On Earth, almost everything works against it — heat, vibration, gravity-bound cooling limits, and a relentless background of energy. Orbit removes the obstacles instead of engineering around them.

01
❄️

The vacuum is already cold

Qubits need millikelvin temperatures. In the shadow of a radiator panel, deep space sits near 3 K with no atmosphere to fight. Cooling becomes radiative, not just refrigerated — slashing the energy cost of the coldest stage.

02
〰️

No ground to shake

Seismic micro-vibration, traffic, HVAC, and footsteps all decohere qubits. A free-flying platform in microgravity is mechanically silent in a way no terrestrial basement can ever match.

03
☀️

Power that never sets

In the right orbit the Sun never dips below a horizon. Multi-junction solar arrays harvest unfiltered sunlight 24/7 — no clouds, no night, no atmospheric losses, no land footprint.

04
🛰️

A clean electromagnetic sky

Away from terrestrial RF noise and with isolation impossible to buy on the ground, control signals stay clean — improving gate fidelity at the physical layer rather than correcting for it.

Why It Works in Orbit

The environment becomes the machine.

Every constraint that makes terrestrial quantum data centres expensive — cooling, isolation, energy, real estate — is something space simply hands you. We stop spending watts to recreate the cosmos and start operating inside it.

How we get there
~3 KNatural sink temperature of deep space, used for passive radiative cooling stages.
24/7Uninterrupted solar exposure in sun-synchronous orbit — no day/night cycling of the array.
~0 gMicrogravity removes the structural and convective vibration that limits ground sites.
Orbit vs. Ground

Same physics. Better address.

Base cooling
Energy-intensive cryogenics from room temperature
Radiative cooling toward a ~3 K background
Vibration
Seismic, mechanical, human — constant
Free-flying microgravity, mechanically isolated
Power supply
Grid-tied, intermittent renewables, carbon cost
Continuous unfiltered solar, no land use
Land & cooling water
Vast footprint, scarce water for heat rejection
None required — heat radiates to space
EM environment
Dense terrestrial RF interference
Engineered quiet, far from ground noise
The Roadmap

From wafer to orbit.

A staged path that de-risks the hardest parts first — power and cooling — before scaling the quantum payload.

2026

Power Demonstrator

Validate large-area germanium-based multi-junction solar arrays and radiative cooling in LEO.

2028

Cryo Payload

Fly a first cryogenic quantum module, proving coherence gains in the orbital environment.

2030

Pilot Data Centre

Operational multi-qubit node serving sovereign European compute customers.

2033+

Orbital Cluster

Networked constellation scaling power and qubits as a true space-based facility.

Built in France · For Europe

The data centre of the next century orbits.

We're partnering with material suppliers, launch providers, space agencies and quantum researchers to make sovereign orbital compute real. If that's you, let's talk.

Become a partner