Google plans to launch a prototype satellite next week as part of Project Suncatcher, an experimental effort to explore whether space could eventually support large-scale artificial intelligence computing infrastructure.
The mission will mark Google’s first in-orbit test of the project. It is scheduled to fly aboard SpaceX’s upcoming Transporter-18 rideshare mission in partnership with satellite company Planet Labs.
The prototype satellite will carry Google’s Tensor Processing Units (TPUs) into low Earth orbit. Engineers will study how the AI hardware performs under the extreme conditions of space, including launch forces, radiation and temperature fluctuations.
Space radiation can interfere with electronic systems and cause data errors known as bit flips. Google wants to determine whether its AI chips can maintain reliable performance in orbit.
The company previously tested its TPUs while running AI workloads at a facility at the University of California, Davis. Google said orbital testing is still necessary because laboratory conditions cannot fully reproduce the space environment.
Another challenge is cooling. AI chips consume significant amounts of power and generate substantial heat, but conventional airflow-based cooling does not work in the vacuum of space. Google’s design will use heat pipes and radiators to transfer heat away from the hardware.
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Project Suncatcher is part of a broader push to explore space-based computing. Companies such as SpaceX and Starcloud are also developing concepts for data centers in low Earth orbit. These systems could potentially use near-continuous sunlight as an energy source for power-intensive AI workloads.
However, experts say commercial space-based data centers remain years away. High launch costs, complex engineering requirements and limitations in satellite manufacturing continue to pose major challenges.
Google said the first Suncatcher mission will focus on collecting in-orbit data and identifying potential failure points. It is not intended to demonstrate a fully operational orbital data center.
The company plans to launch two additional satellites in 2027 to test high-bandwidth laser communication links. These links could eventually connect larger computing clusters in orbit.
