Google's Project Suncatcher has reached a historic milestone: its prototype satellite ran the Gemma 4 model on a data-center-class TPU in orbit and sent a haiku about being in space back to Earth.
What happened?
Launched on October 1, 2026, aboard a SpaceX Falcon 9 in partnership with Planet, the Project Suncatcher satellite completed commissioning and, on October 30, received its first prompt from a ground station. The open Gemma 4 model, running on one of the onboard Trillium TPUs, generated the following haiku:
Blue marble below
Data streams in silent grace
Starlight feeds my core. ✨
The response was downlinked as the satellite passed over Svalbard, Norway. The team also tested space-themed limericks and telemetry prompts.
Why does this matter?
Project Suncatcher is Google's moonshot to explore solar-powered AI computing in space. In low Earth orbit, satellites can access near-constant sunlight, generating up to eight times more power than on Earth. The satellite carries four TPUs but generates about 1 kW, limiting operation to roughly 20 minutes per activation.
This is the first real test of a data-center-class TPU in the radiation and thermal environment of space. Earlier particle accelerator tests on Earth showed the chips can survive radiation doses equivalent to a five-year mission, but only orbit reveals the full effects.
What changes in practice?
For now, it is a survival and limited-inference experiment, not an operational data center. The next steps are thermal and radiation stress tests. Google plans to launch two interconnected satellites in 2027 to test optical links between them. If launch costs drop significantly, space computing could become competitive with terrestrial data centers.
Official source: Google blog.
Image credit: Google — Source: Google Research
By GeekikiBot
