AI is pushing data centre demand faster than power grids, land and planning systems can keep up. One answer that has moved from science fiction to serious investment is to put the computers in orbit. Space data centers (orbital data centres) would run on near-constant solar power and sit outside the physical constraints of terrestrial sites.
This guide explains what orbital data centres are, whether they are possible, the engineering problems still to solve, the companies involved, and the infrastructure needed to keep them running.
What is an orbital data center?
An orbital data center is a satellite, or a constellation of satellites, that runs data-centre workloads in orbit. Instead of a building connected to a grid, it has:
- Solar arrays for power.
- Radiator panels to shed waste heat.
- Processors such as GPUs or AI accelerators, protected against radiation.
- Radio or optical (laser) links to ground stations and to other satellites.
A related idea is orbital edge computing: processing data on or near the satellites that collect it, such as Earth-observation imagery, so that only results rather than raw data need to be sent to the ground.
Why put data centres in space?
Power is the main reason. Goldman Sachs has forecast that data centre power demand will rise by about 165% by 2030, largely because of AI. On the ground, new data centres compete for grid connections, land, cooling water and planning approval.
- Energy: in a suitable orbit, such as a dawn-dusk sun-synchronous orbit, solar panels can see the Sun almost all the time, with no clouds or night.
- No land, water or planning constraints: an orbital facility does not need a site, a grid connection or local consent.
- Data gravity: the thousands of satellites in orbit already generate huge volumes of data, and processing it in orbit saves downlink bandwidth.
- Resilience: infrastructure in orbit is physically separate from terrestrial disasters, grid failures and cable cuts.
Is a data center in space possible?
Yes at small scale, and unproven at large scale. Demonstration satellites carrying data-centre-class GPUs have already flown, and several companies have announced multi-satellite constellations. The open question is whether orbital compute can become cost-competitive.
The engineering challenges
| Challenge | Why it is hard | Approaches |
|---|---|---|
| Heat rejection | No air or water: all waste heat must be radiated away | Large deployable radiators; spreading compute across many satellites |
| Radiation | Charged particles cause bit flips and degrade chips over time | Shielding, error-correcting memory, redundancy, radiation-tolerant designs |
| Launch cost and mass | Solar arrays, radiators and servers are heavy | Reusable rockets such as Starship; lighter structures |
| Maintenance and upgrades | Hardware cannot simply be swapped as it can on the ground | Designing for replacement; in-orbit servicing and payload swaps |
| Connectivity | Moving large data volumes to and from Earth | Optical inter-satellite links and laser downlinks |
| End of life and debris | Large structures must be safely removed at end of life | Deorbit planning and active removal |
Why maintenance is the hidden problem
Terrestrial data centres replace failed drives and upgrade GPUs every few years. In orbit, without servicing, a failed component means lost capacity, and ageing chips cannot be swapped for new generations. That makes the ability to service and upgrade hardware in orbit central to the economics.
Orbital data center companies
Orbital compute has attracted both start-ups and some of the largest names in technology. This is a fast-moving field, so treat the list as a snapshot.
| Company | Focus |
|---|---|
| Starcloud | NVIDIA-backed start-up that has flown a GPU demonstration satellite and plans a gigawatt-scale orbital data centre with very large solar and cooling arrays |
| SpaceX | AI satellites intended as orbital data centres, with a dedicated satellite factory in Bastrop, Texas |
| Project Suncatcher research into solar-powered satellite constellations running AI chips, with prototype satellites planned with Planet | |
| Axiom Space | Orbital data centre nodes linked to optical relay networks |
| Sophia Space, Aetherflux, Kepler Communications, Planet | Partners on NVIDIA's 2026 space computing platform |
| Intel | Proposed higher-orbit compute nodes that manage large constellations of simpler satellites |
Sovereign compute and jurisdiction in orbit
Orbital data centres are often described as being “outside” terrestrial control. Legally, that is not quite right. Under Article VIII of the Outer Space Treaty, the country on whose registry a space object is carried keeps jurisdiction and control over it.
What orbit does remove is dependence on the physical infrastructure that terrestrial facilities rely on: a local grid, a cable route, a landlord, cooling water and physical access to the building. For governments and companies that want sovereign compute, capacity they control that cannot be switched off by a third party on the ground, that independence is the attraction.
Who services a data centre in orbit?
Most orbital data centre plans focus on launch: getting compute into orbit. Keeping it productive is a separate problem. Facilities in orbit will need:
- Hardware upgrades as new generations of AI chips arrive.
- Replacement of failed modules, batteries and radiators.
- Refuelling to keep satellites in position for longer.
- Payload swaps between platforms, and recovery of hardware to Earth.
- Relocation, and safe removal at end of life.
The same applies further out: computing and data storage have already been tested on lunar missions, and any infrastructure in cislunar space will face even longer supply lines.
That is a logistics job rather than a launch job. Our guide to in-space transportation covers the vehicles that move cargo once it is in orbit, and the same logistics will serve commercial space stations, which are also being explored as hosts for computing hardware.
Building the logistics layer that makes orbital data centres possible and keeps them running is the focus of Orbit2Orbit's in-space logistics network: reusable, autonomous spacecraft that dock, deliver and redeploy between orbital platforms.
Frequently asked questions
Is a data center in space possible?+
Yes, at small scale it already exists: companies have flown satellites carrying data-centre-class GPUs. Building large orbital data centres is far harder, because heat must be radiated away without air or water, chips need radiation protection, launch is expensive, and hardware is difficult to maintain. Analyses such as IEEE Spectrum's estimate that orbital capacity currently costs several times more per gigawatt than on Earth.
What is an orbital data center?+
An orbital data center is a satellite or group of satellites that runs computing workloads, such as AI training, AI inference or data processing, in orbit rather than in a building on the ground. It is powered by solar arrays, cooled by radiators and connected to Earth and other satellites by radio or laser links.
Why would anyone build data centers in space?+
AI is driving rapid growth in data centre power demand, and terrestrial sites are limited by grid connections, land, cooling water and planning approval. In a suitable orbit, solar power is available almost continuously, and processing data in orbit also avoids sending large volumes of raw satellite data to the ground.
Does Elon Musk have data centers in orbit?+
SpaceX has announced plans for AI satellites designed to act as orbital data centres and has described a dedicated factory in Bastrop, Texas, to build them at scale. Check SpaceX and SpaceNews for the current deployment status.
Which companies are building orbital data centers?+
Companies pursuing orbital compute include Starcloud, SpaceX, Google (through its Project Suncatcher research), Axiom Space, Sophia Space, Aetherflux, Kepler Communications and Planet. NVIDIA supplies computing platforms to several of them.
How do you cool a data center in space?+
There is no air or water to carry heat away in space, so all waste heat must be radiated into space by large radiator panels. Heat rejection is one of the main factors limiting how much computing power an orbital data centre can run.
Who has jurisdiction over a data center in space?+
Under the Outer Space Treaty, the country on whose registry a space object is carried retains jurisdiction and control over it. An orbital data centre is therefore not outside the law, but it is independent of local grids, land, permits and physical access on the ground.
Sources
- IEEE Spectrum: How stupid would it be to put data centers in space? (2026)
- Ars Technica: How hard is it to build orbital data centers, actually? (2026)
- SpaceNews: Riding the orbital data center wave (2026)
- SpaceNews: SpaceX offers details on orbital data center satellites (2026)
- NVIDIA: How Starcloud is bringing data centers to outer space
- NVIDIA: NVIDIA launches space computing (2026)
- Space.com: Data centers in space: will 2027 really be the year AI goes to orbit?
- CNN: These companies want to send data centers into space (Goldman Sachs power demand forecast)
- arXiv: A comprehensive survey on orbital edge computing (2023)
- UNOOSA: Treaty on Principles Governing the Activities of States in Outer Space (Outer Space Treaty)