Google’s October 1, 2026 launch of Project Suncatcher—a refrigerator-sized satellite carrying four TPUs on a SpaceX rocket—represents the most recent catalyst for trader sentiment around orbital AI data centers. The test evaluates radiation tolerance, thermal management without airflow, and basic Gemini query processing in low-Earth orbit, yet falls far short of the market’s 100-accelerator threshold for resolution. Broader momentum stems from SpaceX’s FCC filing for up to one million AI-compute satellites and similar proposals from Blue Origin and Starcloud, which already demonstrated an H100 running inference in 2025. Persistent barriers include launch economics, hardware longevity, and inter-satellite laser links, with Google’s planned 2027 follow-on missions and SpaceX’s 2027–2028 targets serving as key near-term catalysts traders are monitoring.