The Johns Hopkins University Applied Physics Laboratory
Dr. Ralph D. Semmel became the eighth director of the Johns Hopkins University Applied Physics Laboratory on July 1, 2010. As director, Dr. Semmel leads the nation’s largest university affiliated research center, which performs research and development on behalf of the Department of Defense, the intelligence community, NASA, and other federal agencies.
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The Johns Hopkins University Applied Physics Laboratory
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We solve complex research, engineering, and analytical problems that present critical challenges to our nation. APL—the nation’s largest university affiliated research center—provides U.S. government agencies with deep expertise in specialized fields to support national priorities and technology development programs. We also serve as independent trusted technical agents to the government, providing continuity for highly complex, multigenerational technology development systems.