Alphabet to Launch Google TPUs on SpaceX Falcon 9 for Project Suncatcher's First Orbital Test
Alphabet plans to send its self-developed Google TPUs into orbit aboard a SpaceX Falcon 9 rocket, marking the first in-space test of Project Suncatcher. The mission, designated Transporter-18, is scheduled for 11:32 a.m. Pacific Time on October 1, 2026, from Vandenberg Space Force Base in Santa Barbara County, California.
During the uncrewed launch, the Falcon 9 will carry multiple Planet Labs satellites, including a solar-powered prototype satellite equipped with Google's tensor processing units (TPUs). Alphabet first revealed Project Suncatcher in November 2025, describing it as an effort to develop reliable, solar-powered AI computing infrastructure capable of operating continuously in space. The company said the project aims to explore whether space can host scalable machine-learning infrastructure.
Alphabet noted that satellites in low Earth orbit can receive nearly continuous sunlight, potentially generating up to eight times more solar energy than on Earth. Ultimately, the company hopes to link multiple satellite constellations to handle larger AI workloads in orbit. Google has previously tested TPU-based AI workloads at a facility at the University of California, Davis, but it remains unclear how the chips will perform in the extreme environment of low Earth orbit.
SpaceX is also pursuing space data centers, planning to build and launch orbital data centers made up of large satellite constellations equipped with GPUs and solar panels, in collaboration with Tesla. Musk said in early 2026 that space data centers would become the cheapest way to train AI, possibly within two or three years. SpaceX COO Gwynne Shotwell said at an event in September 2026 that the company plans to deploy "supercompute in space" by 2027. Industry experts, however, caution that space data centers still face challenges including limited and costly launch capacity, cooling needs, radiation resistance, space debris and orbital congestion.
