Google has announced that its Project Suncatcher prototype has completed an end-to-end AI inference demonstration in orbit. A ground station sent a prompt to Gemma 4 running on a satellite-borne, data-center-class TPU, and the satellite transmitted the generated text back to Earth as it passed over Svalbard, Norway. During the test, the team successively completed tasks including generating a space-themed haiku and limerick, and reporting payload telemetry data—confirming that the inference was executed in real time onboard the satellite rather than through playback of preloaded samples. The project is a long-term research initiative Google unveiled in November 2025. The prototype satellite was launched on October 1, 2026, on a rideshare mission, aiming to explore whether solar-powered satellites equipped with TPUs can support machine learning computing in space; it is not a commercial orbital data center service. The project still faces engineering challenges such as hardware radiation resistance, heat dissipation, long-term operational reliability, establishment of inter-satellite links, and cost control. Google plans to deploy two interconnected satellites in 2027, expanding the experiment from single-satellite processing to multi-satellite collaborative testing.