Starcloud

Starcloud is a US-based orbital AI computing company founded and backed through Y Combinator's Summer 2024 batch, developing a constellation of satellites carrying high-performance GPU hardware — initially NVIDIA H100 modules — to provide cloud computing from very low Earth orbit (VLEO). The company achieved a notable first: training an AI machine learning model entirely on orbit using a spaceborne NVIDIA H100 GPU, demonstrating that commercial GPU workloads can execute in the space environment and return results to Earth.

Starcloud's thesis is that VLEO (roughly 200–400 km altitude) offers a unique combination of advantages for certain AI and data processing workloads: radiative cooling in vacuum allows GPU chips to dissipate heat more efficiently than in atmosphere-cooled terrestrial data centers; the orbital vantage point provides direct, low-latency access to raw satellite sensor data without needing to downlink petabytes to ground for processing; and the persistent coverage of VLEO passes over any location enables edge AI inference for customers needing near-real-time analysis of satellite imagery, SAR data, or signals intelligence.

NVIDIA's Inception program backing aligns with NVIDIA's broader strategy of expanding its GPU ecosystem into space computing — a market where the need for AI inference at the edge (processing data where it's collected) creates demand for radiation-tolerant or radiation-tested GPU hardware. Starcloud's 300-satellite VLEO constellation plan is ambitious given the orbital drag at those altitudes requires continuous propulsion for orbit maintenance, adding propulsion and power system complexity to each satellite.

The commercial model targets AI workload customers (earth observation analytics companies, remote sensing operators, scientific data pipelines) who need near-real-time processing without the bandwidth costs of downlinking raw data. Starcloud competes with Orbital Sidekick (which uses onboard AI for hyperspectral satellite data), satellite edge computing platforms from Unibap and GHGSat, and terrestrial cloud providers' satellite ground station services like AWS Ground Station that enable rapid downlink for ground-side processing.