Cutting-edge technology and scientific tools drive world-shaping discoveries at DOE. The Office of Science accelerates discovery with the world’s largest array of major scientific user facilities that includes particle colliders, powerful X-ray light sources, supercomputers, and delicate sensors and optics. To keep America in the forefront of discovery and innovation, we sponsor research at hundreds of universities, national laboratories, and other institutions across the country. We also build and maintain a vitally important array of large-scale scientific facilities at the DOE national laboratories, which are used by thousands of researchers every year.