Starcloud bets on Bitcoin mining in space

Bitcoin mining leaves the realm of mere science fiction. Starcloud, an American startup supported by Nvidia, claims it will carry mining ASICs on its second spacecraft later in 2026. If the trial succeeds, the company would become the first to mine bitcoin from Earth orbit.

Starcloud wants to make bitcoin a credible use case in space

Starcloud no longer talks about a vague concept, but a concrete test announced by its CEO Philip Johnston. Its bet is based on a simple idea. In space, solar energy is abundant, continuous, and does not compete directly with terrestrial power grids. For Starcloud, this could turn bitcoin mining into a natural use of orbital computing, much more easily than heavy AI which requires much more expensive GPU chips.

Starcloud’s project does not come from nowhere. Founded in 2024, the company initially works on orbital data centers designed to meet the explosive computing needs, especially for AI. It has already launched a satellite equipped with an Nvidia H100 GPU into orbit, then claimed to run and even train AI models in space.

Within this context, bitcoin appears almost as a logical detour. Philip Johnston explains that ASICs cost much less per watt than GPUs. He provides an order of magnitude striking around 1,000 dollars for a 1-kilowatt ASIC, versus up to 30,000 dollars for a B200 chip of equivalent power. Viewed from this angle, mining becomes for Starcloud a more realistic gateway to orbital profitability.

This detail changes the reading of the file. Starcloud is not only trying to make a name for itself with a marketing stunt. It also attempts to demonstrate that space can host simple, energy-intensive, and highly standardized computing activities. And bitcoin mining fits this profile exactly. It does not require a complex interface. It mainly needs electricity, specialized machines, and a reliable connection.

An ambitious promise, but still far from a proven model

The discourse is appealing. Johnston even goes further by estimating that bitcoin mining consumes about 20 gigawatts of continuous power and that in the long term, a significant portion could be relocated to space. The idea captures the imagination. But between a technical demonstration and a truly viable industry, the gap remains enormous.

Because orbital computing still has major flaws. Launch costs remain high. Hardware must survive radiation, debris, thermal constraints, and almost nonexistent maintenance. Several industry players advocate for space data centers, but major voices remain skeptical about their medium-term profitability. Reuters reported in early February that the head of AWS considered these infrastructures very far from a solid economic reality.

In other words, space bitcoin mining becomes technically possible. That doesn’t mean it becomes immediately competitive. Starcloud plays a pioneering role here. The market will wait for proof: real yield, equipment lifespan, hash cost, orbit reliability, and return on investment. As long as these points remain vague, the project is still more advanced testing than an industrial revolution.