The University of Pittsburgh's internationally recognized Department of Physics and Astronomy has long been an important leader at the frontier of science and, with 500 PhD alumni, has launched many distinguished careers. The current Department leads research efforts that promise an ever-deeper understanding of the Universe. From elementary particles to the largest galaxy clusters, in cutting-edge technological innovation and the intersection of quantum and classical physics, our faculty and students explore the fundamental laws of nature. Students may expect to pursue research that influences many fields, including biology, mathematics, medicine, chemistry, engineering, and computer science.