The James R. Macdonald Laboratory is a U.S. Department of Energy User Facility located in Cardwell Hall on the Kansas State University campus. Basic atomic physics experiments conducted here provide a deeper understanding of the structure of matter. Results of some recent experiments have been applied to areas of astrophysics. Data from other experiments were applied to fusion technology, where scientists are exploring the possibility of a revolutionary energy source. Additionally, basic research conducted at the Macdonald Laboratory helps prepare young scientists for careers in physics.