Google Launches AI Chip-Satellite in Bid for Space-Based Computing Dominance

Google has announced plans to launch a prototype satellite next week on SpaceX's Transporter-18 rideshare mission in partnership with Planet. The satellite will test Google's Tensor Processing Units (TPUs) under conditions of radiation, thermal extremes, and physical stresses of spaceflight as part of the company's Project Suncatcher.

The long-term research effort aims to explore whether space could support large-scale machine learning infrastructure. According to Google, satellites in low Earth orbit could have access to nearly continuous sunlight and potentially generate up to eight times more solar power than comparable systems on Earth.

Google has already subjected its Trillium TPUs to simulated launch vibrations and proton-beam radiation testing. The company said the chips survived radiation levels greater than those expected during a five-year space mission.

The upcoming mission will also test heat pipes and radiators designed to move heat away from the chips, which is a major challenge in operating AI chips in space due to the lack of airflow.

Google's Project Suncatcher is part of a growing orbital AI race that includes SpaceX, Blue Origin, and startups such as Starcloud, Axiom Space, Kepler Communications, Orbital, and Sophia Space. These companies are exploring large orbital data-center constellations and using space-based solar power, radiative cooling, and optical links to support future AI infrastructure.

GOOG stock has gained over 8% this year and more than 36% in the last 12 months.