Argonne National Laboratory is a leading United States Department of Energy research laboratory located in Lemont, Illinois. Established in 1946, it was the first national laboratory in the United States and is managed by UChicago Argonne, LLC. Argonne conducts advanced research in energy, environmental science, computing, materials science, national security, and physics. The laboratory operates world-class scientific facilities and collaborates with universities, industry, and government agencies to address critical scientific and technological challenges.