A prototype satellite launched on Oct. 1 generated a haiku using the Gemma 4 AI model on a TPU and transmitted it to Svalbard, Norway.
Key points
▶ Google said on Oct. 30 (local time) that it had received its first AI response from a prototype satellite for Project Suncatcher, its proposed space-based data center.
▶ The satellite was launched aboard a SpaceX Falcon 9 rocket on Oct. 1. It was built in partnership with Planet, an Earth-imaging satellite company.
▶ It carries four data-center-class TPUs and can generate up to 1 kW of power from solar panels.
Below, a blue marble,
Data flows in quiet grace,
Starlight fills my core.
This is a poem composed by AI aboard a satellite Google sent into space.
Google said on Oct. 30 (local time) that it had received its first AI response from a prototype satellite for Project Suncatcher, its proposed space-based data center.
Researchers on the ground asked Gemma 4, an open AI model aboard the satellite, to “write a haiku about what it feels like to be in space.” The satellite sent its reply as it passed over a ground station in Svalbard, Norway.
A haiku is a traditional Japanese poem of three lines. Google said, “Our chips have officially earned their space wings,” calling the achievement an important milestone in its long-term effort to reach space.
◆ A TPU performed computations in orbit
What matters more than the poem is where it was written. A data-center-class TPU (tensor processing unit) aboard a satellite orbiting Earth ran an AI model and generated the response.
Travis Beals, a senior director leading a Google research organization, compared the achievement to “Hello, World,” the first program people often run when learning to code. It shows that everything is working. The satellite was launched alongside other satellites aboard a SpaceX Falcon 9 rocket on Oct. 1.
It was built in partnership with Planet, an Earth-imaging satellite company. After reaching orbit, it underwent about three weeks of commissioning and equipment checks before beginning machine-learning computing tests.
Power is a constraint. The satellite carries four TPUs and can generate up to 1 kW of solar power—enough to run a household electric kettle. That allows it to operate just one TPU at a time for about 20 minutes. Compared with ground-based data centers, where thousands of TPUs run around the clock, this is strictly a test.
◆ Why put data centers in space?
Google first unveiled its Suncatcher concept in November last year. The idea starts with sunlight: low-Earth-orbit satellites experience very little nighttime and can generate up to eight times as much power as comparable solar panels on the ground.
The plan is to move data centers into orbit to sidestep the problems of electricity, cooling water and land that challenge facilities on Earth. Google envisions linking multiple small satellites, each carrying dozens of TPUs, via laser communications so they can operate like a single data center. Google has previously said that in ground tests, its Trillium TPU withstood radiation levels greater than those expected during a five-year space mission.
The next steps are also laid out. Google will test whether the TPUs can compute without data errors while exposed to sharp temperature swings and space radiation. If testing is successful, the company plans to launch two satellites in 2027 equipped with high-performance TPUs and inter-satellite laser communications equipment, and test data exchange between them.
◆ There are competitors—and challenges remain
Google is not the only company pursuing space-based data centers. Starcloud, a startup backed by Nvidia, said last December that it had run Google’s Gemma AI model on a satellite carrying an Nvidia H100 GPU. About 10 months later, Google has achieved the same feat using its own chip.
Commercialization is still a long way off. Equipment damage and data errors caused by radiation, cooling in a vacuum, securing enough power, repairs in the event of a failure, and space debris all remain challenges. On the ground, parts can be replaced; in orbit, they cannot. Google has not disclosed the number of satellites, their orbital altitude or the cost of the project. The haiku has confirmed just one thing: a TPU can perform computations in orbit.