Michigan is investing $7.5 million to research geologic hydrogen, a potential clean energy source beneath the state that experts say could help power a transition away from fossil fuels. ^[1] Engineers at Sandia National Laboratories successfully conducted the Atrax sounding rocket flight test to collect real-world reentry vibration data. ^[2] The mission captured vibration data to aid the development of the W93 warhead, which is the United States' first completely new nuclear weapon program in nearly 30 years. ^[3] A 2025 U.S. Geological Survey study mapped areas of the country with high potential for buried hydrogen, placing Michigan on the higher end, which prompted Governor Gretchen Whitmer to direct state resources into further research in January. ^[4] Kevin Mehren, director of the Michigan Infrastructure Office, said geologic hydrogen is a major decarbonization tool that could help clean up Michigan's high-emissions industries, including trucking, steel, and cement manufacturing. ^[5] The test captured vital thermal, fluid, and structural data without damaging the vehicle using advanced external sensors, a new separation system, and a three-stage sounding rocket. ^[6] The testing gave early access to real flight physics two full years ahead of the scheduled W93 flight tests. ^[7] Brian Ellis, an associate professor at the University of Michigan and co-director of MI Hydrogen, said existing oil and gas drilling infrastructure in northern Michigan could be used to search for geologic hydrogen, and well data could be data-mined for hydrogen indicators. ^[8]