Johns Hopkins University's Applied Physics Laboratory (APL) in Laurel, Maryland, stands out as the nation's largest university-affiliated research center. Unlike a traditional university setting, APL focuses on cutting-edge research in advanced science and technology, rather than undergraduate teaching. This prestigious institution employs over 8,800 people, predominantly technical professionals, and engages in vital R&D activities for major government agencies, including the Department of Defense and NASA. APL also offers graduate-level engineering programs through Johns Hopkins' Whiting School of Engineering, alongside various STEM outreach initiatives for aspiring students 110.

Spanning an impressive campus of nearly 461 acres with over 30 buildings, APL is involved in critical work areas such as air and missile defense, naval warfare, cybersecurity, and space science. With a rich history dating back to World War II, APL continues to be a leader in technological innovation. Despite welcoming visitors, it remains primarily a research and development hub, distinct from a traditional university campus 110.