Both The Register and Ars Technica report that Google will launch its first Project Suncatcher test satellite on October 1 aboard a SpaceX Falcon 9 rideshare mission. The satellite, dubbed MVP, is about the size of a refrigerator and houses four of Google's standard Trillium TPUs. It carries solar panels generating roughly one kilowatt of power—enough for a microwave, as Ars notes. The hardware is not space-rated; Google has only run ground tests simulating vibration and radiation.
The sources agree that cooling is the most immediate hurdle. In vacuum, heat cannot dissipate by convection, so Google uses heat pipes and a radiator. Ars specifies that the cooling system can only handle about 15 minutes of continuous operation before the TPUs must shut down to let the radiator catch up. The Register adds that Google calculates 1.3 square meters of radiator area per TPU, and the test will also gauge how the chips survive launch forces up to 100 g.
Both outlets frame this as a moonshot. The Register quotes Gartner analyst Bill Ray calling space data centers "peak insanity" and notes that launch costs would need to drop from $7,000/kg to $10/kg for economic viability. Ars mentions that Google still plans larger custom satellites in 2027 but expects years of development. The test satellite will operate only a few months, and neither source claims it will prove the concept—only reveal what works and what needs redesigning.