Google announced Project Suncatcher to test AI hardware in space. A prototype satellite will launch on SpaceX’s Transporter-18 mission. It will test how Google’s TPU chips handle extreme radiation and vibration. The team already ran vibration and proton beam tests on Earth. Cooling in a vacuum requires radiators and heat pipes. Future satellites will link via high-bandwidth lasers. The first launch aims to gather in-orbit data. A 2027 mission will test two satellites in orbit. The goal is scalable AI compute in space by linking satellite clusters. Satellites in orbit can access near-constant sunlight for power.
What changed
AI hardware had not been tested for space survival at this scale.
What it unlocks
Running scalable AI workloads in orbit using satellite clusters.
- 10 minutes rocket trip to orbit
- 50 to 100 g-force on TPU chips
- 8x more solar power in orbit
- 2027 next milestone
What you need to act on it
- a successful prototype satellite launch
- TPU survival in space conditions
Sources