Google's Project Suncatcher will test TPUs in orbit on a prototype satellite

Google's Project Suncatcher will launch a prototype satellite on the Transporter-18 rideshare mission with SpaceX to test how its TPUs handle spaceflight.

Initial ground tests showed the Trillium TPUs survived vibration and a radiation dose greater than a five-year space mission would deliver.

Google says cooling with heat pipes and radiators and laser links between satellites in 2027 remain open engineering challenges.