Google's Suncatcher prototype space data center is online and talking to the ground, TechCrunch reported on October 30, 2026. The satellite launched earlier that month on a SpaceX Falcon 9 alongside more than 100 other spacecraft.
On board are four Google Tensor Processing Units (TPUs) generating up to 1 kW of electricity, running Google DeepMind's Gemma 4 model. The first prompt engineers sent asked for a haiku about being in space. The reply: "Blue marble below / Data streams in silent grace / Starlight feeds my core."
Google Suncatcher specs and the 20-minute power limit
The satellite carries four TPUs but can only run one at a time for about 20 minutes, because of the power they demand. That constraint complicates space-to-ground communications, which are already difficult.
After roughly three weeks of commissioning that tested its subsystems, the spacecraft was declared ready. A Google spokesperson told TechCrunch the satellite was operating nominally. The test campaign will examine how the chips handle thermal stress and the radiation environment of space.
- Four Google TPUs on board, one active at a time
- Up to 1 kW of electricity generation
- About 20 minutes of operation per TPU cycle
- Runs Google DeepMind's Gemma 4 model
