Google plans to test its custom AI hardware in orbit as part of an ambitious project that could eventually support Google AI chips in space. The company plans to send a prototype satellite aboard a SpaceX rideshare mission scheduled for October 1, 2026.
The test forms part of Project Suncatcher, a Google research effort exploring whether satellites equipped with AI processors and solar power could eventually operate as an orbital computing network.
Google and Planet Build AI Satellite
Google has reportedly worked on the custom AI hardware behind the project since 2022. The prototype satellite was developed with Planet, an Earth-imaging company that specializes in satellite technology.
The spacecraft carries four custom-designed Google Tensor Processing Units, commonly known as TPUs.
These processors will allow Google to examine how AI computing hardware performs outside Earth’s atmosphere. The company will also study whether satellite-based computing could become practical on a larger scale.
SpaceX Mission Will Test Hardware
The prototype is expected to launch as part of SpaceX’s Transporter-18 rideshare mission.
During its planned year-long mission, the satellite will face conditions that are difficult to reproduce on Earth. Engineers will monitor how the TPUs handle space radiation and extreme temperature changes.
The project will also test passive cooling techniques.
Cooling presents a major challenge for orbital computing because conventional air-based cooling does not work in a vacuum. Engineers therefore need to explore alternative methods for moving heat away from processors.
Before flight, Google engineers subjected the hardware to thermal-vacuum testing. These tests simulated the temperature changes and low-pressure conditions that the equipment will encounter in orbit.
Project Suncatcher Could Link Satellites
Google also plans to investigate high-speed communication between satellites.
Future versions of Project Suncatcher could use laser-based optical links to transfer data between orbital nodes. The company plans to deploy two additional Planet-built satellites in 2027 to test these connections.
Laser communications could allow satellites to exchange large amounts of data without relying entirely on traditional ground-based networks.
As a result, the technology could become an important part of Google’s longer-term vision for orbital AI computing.
Why Google Wants AI Computing in Space
The project comes as demand for AI processing continues to drive investment in data centers and specialized computing hardware.
Traditional data centers require large amounts of electricity, cooling infrastructure and physical space. Google is exploring whether satellites could eventually provide another way to handle some of that computing demand.
Project Suncatcher combines three key technologies: AI accelerators, solar power and orbital computing.
Solar arrays could provide a continuous source of energy in orbit, while specialized TPUs would handle AI workloads. Meanwhile, satellite networks could connect individual computing nodes.
However, the concept remains experimental.
Google first needs to determine whether its processors can operate reliably in the harsh space environment. It must also establish whether satellite cooling, communications, maintenance and launch costs make orbital AI computing practical.
Google’s Space AI Experiment Begins With a Test
The October mission represents an early step rather than the launch of a full space-based data center.
The year-long test should provide engineers with important information about radiation resistance, thermal management and processor performance in orbit.
If the technology performs well, Google can use the results to develop more advanced satellites and optical communication systems.
Ultimately, Project Suncatcher aims to answer a major question: could networks of solar-powered satellites help supplement Earth-based data centers as demand for AI computing continues to grow?
For now, Google’s Google AI chips in space experiment will begin with four TPUs and one test satellite on a planned SpaceX launch.
