Google's first Suncatcher orbital data center test launches October 1

Google is taking its first step toward making Project Suncatcher a reality. Announced last year, Suncatcher is Google’s “moonshot” effort to design orbital AI data centers, which AI boosters like Elon Musk and Jeff Bezos have pitched as an alternative to divisive terrestrial data centers. Google’s first experimental satellite will launch on October 1 with the aim of validating Google’s vision for a constellation of AI satellites. The satellite, dubbed MVP, is about the size of a refrigerator. Inside, it has four of Google’s custom TPU AI accelerators, which are used to train AI models and run inference to generate tokens for AI workloads. On Earth, a data center will run thousands of these chips, which consume massive amounts of power—one of the reasons putting solar-powered AI hardware in space is so attractive. Google says it has conducted testing on the ground, but launching the satellite will provide a fuller picture of the current challenges. For example, the team will need to evaluate how Tensor chips handle space conditions. In many space missions, hardware is designed specifically for extreme temperatures or radiation, but these are the same TPUs that Google integrates into servers on the ground. Radiation can damage chips or simply interfere with calculations by flipping bits. But vibration and high g-forces during launch also pose problems. Still, as we’ve seen with missions like the Ingenuity Mars helicopter, off-the-shelf hardware can hold up pretty well out there.