NASA’s High-Altitude ER-2 Missions Map Critical Mineral Resources in the Western US
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NASA is undertaking an enterprising, multi-year effort to identify and map critical mineral resources across the Western United States, bolstering national security and supporting the burgeoning clean energy sector. The Geological Earth Mapping Experiment (GEMx), a collaboration between NASA and the U.S. Geological Survey, utilizes the unique capabilities of the ER-2 aircraft to gather unprecedented data from the Earth’s surface.
On Thursday,August 21,2025,NASA ER-2 pilot kirt Stallings prepared for a high-altitude science mission at the agency’s armstrong Flight Research Center in Edwards,California. The mission exemplifies the agency’s commitment to resource mapping and its innovative approach to addressing national priorities.
Did you know? – The GEMx program aims to find deposits of minerals vital to U.S. national security and the clean energy transition. These include rare earth elements and other materials essential for modern technology and renewable energy infrastructure.
The GEMx team believes notable, undiscovered deposits of at least some of the 50 mineral commodities vital to U.S. national security, the technology industry, and the transition to clean energy sources exist within the country. Modern, detailed mineral maps are crucial for facilitating exploration by the private sector and reducing reliance on foreign supply chains.
“These maps will be instrumental in supporting responsible and efficient exploration,” stated a NASA spokesperson. “By providing a extensive understanding of the geological landscape, we can definitely help unlock domestic resources and strengthen our economic independence.”
Pro tip: – The ER-2’s high-altitude flights allow for detailed surface mapping. This data helps geologists pinpoint areas with high potential for mineral deposits,guiding future exploration efforts and reducing reliance on foreign sources.
The ER-2: A Platform for Precision Mineralogy
The ER-2 aircraft, a versatile platform for airborne science, plays a central role in the GEMx campaign. In 2025 alone, the ER-2 completed 36 science missions, amassing over seven billion measurements during more than 200 flight hours. This data contributes to the largest airborne surface mineralogy dataset ever compiled by NASA in a single campaign.
Pilots operating the ER-2 fly at approximately 65,000 feet, a challenging altitude requiring the use of specially designed pressure suits to ensure safe operation in the thin atmosphere. This extreme altitude allows for a broad and detailed view of the Earth’s surface, maximizing the effectiveness of the mineral mapping efforts.
Data Collection and Analysis
The data collected by the ER-2 is meticulously analyzed by a team of geologists and data scientists. This analysis allows for the identification of areas with high potential for mineral deposits,guiding future exploration activities. .
The success of the GEMx program underscores the importance of continued investment in Earth science research and the development of innovative technologies for resource management. As the demand for critical minerals continues to grow, NASA’s contributions will be essential in securing a sustainable and prosperous future for the United States.
Reader question: – How can this data be used to help the private sector? What are the biggest challenges in mapping these resources? Share your thoughts in the comments.
Image credit: NASA/Christopher LC Clark
Text credit: Darin L. Dinius
