The race to build orbital AI data centers is accelerating, with two major players announcing fresh milestones. Orbital, a startup founded by former Spin e-scooter CEO Euwyn Poon, has raised $5 million in seed funding from a16z and others, while SpaceX has moved up its own timeline for in‑space AI compute tests to as soon as late 2027.
Orbital emerged from a16z’s Speedrun accelerator in May, backed by investors including Basis Set, Human Element, Wayfinder, Antler, Anti Fund, and Ascent. The company plans to launch a demo satellite carrying an Nvidia Blackwell chip to test radiation shielding and thermal management. By 2028, it aims to deploy its first dedicated data-processing spacecraft equipped with Nvidia’s Space‑1 Vera Rubin‑class GPUs, offering piece‑wise AI inference services from orbit.
SpaceX, meanwhile, is targeting late‑2027 demonstration missions, earlier than previously expected. Its AI satellite would use Nvidia chips with compute capacity comparable to a high‑end GB300 rack, and the project is presented as a way to sidestep terrestrial power, land, and permitting constraints. Elon Musk’s company sees orbital compute as a major long‑term growth driver, leveraging Starship’s projected launch‑cost reductions and Starlink’s proven satellite technology.
The appeal is straightforward: space offers unlimited solar energy and minimal regulatory friction at a time when terrestrial AI data centers are straining power grids. However, engineering challenges remain severe. Hardware must withstand radiation, reject heat through radiators, and survive micrometeoroid strikes, while the entire business case hinges on Starship achieving frequent, low‑cost reuse. If Starship is delayed, orbital data centers will struggle to justify their capital intensity—Orbital alone estimates a full 10,000‑satellite constellation could cost $5 billion or more over a decade.
The competitive landscape is tightening. Starcloud already has a GPU in orbit and plans further launches before Starship arrives. Cowboy Space Company, also backed by a16z, is building its own rockets. Jeff Bezos’ Blue Origin has announced data‑center ambitions using New Glenn. Still, investors are betting that the intersection of AI and space infrastructure will create a new compute layer, moving from venture‑backed experiments to commercial viability if the 2027 tests succeed.
