Johns Hopkins University Applied Physics Laboratory

NASA and Johns Hopkins APL Demonstrate First-of-Its-Kind Space Communications

NASA and APL have successfully tested a wideband technology that enabled, for the first time, a spacecraft to communicate ...
Johns Hopkins University Applied Physics Laboratory

Chen Named National Security Analysis Department Head at Johns Hopkins APL

APL has named Yu-Han “Hugh” Chen as head of the National Security Analysis Department (NSAD). Chen, who previously served as ...
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Johns Hopkins APL Partners with InductiveHealth on Disease Informatics for Health Agencies

As the COVID-19 pandemic persists into a second year and conducting disease surveillance continues to be an important component of public health responses, the Johns Hopkins Applied Physics Laboratory ...
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Johns Hopkins APL Director Ralph Semmel to Conclude ‘Extraordinary and Transformative’ Tenure in 2025

Johns Hopkins Applied Physics Laboratory (APL) Director Ralph D. Semmel has announced that he will step down from his role in July 2025, marking the conclusion of 15 remarkable years leading the ...
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Defining Innovations

Among APL’s thousands of critical contributions to national security and space exploration are a number of defining innovations: game-changing breakthroughs in technology that have created inflection ...
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Research and Exploratory Development

The Research and Exploratory Development (RED) Mission Area is Johns Hopkins APL’s research engine. We conduct pioneering research targeting game-changing breakthroughs to benefit national security ...
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Visitor Information

The Johns Hopkins Applied Physics Laboratory is a secure facility, operating under Department of Defense regulations for restricted entry. All visits must be preapproved via written request and ...
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Total Rewards

A Robust Retirement Plan We contribute up to 10.5% of your pay to your retirement savings. The 10.5% includes a foundational APL contribution of 2.5% of your pay, plus matching contributions of $2 for ...
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Campus Maps

Map of the Johns Hopkins APL campus in Laurel, Maryland.
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Government Employee Fellowship Program

APL’s Government Employee Fellowship Program (GEFP) offers you tailored work experiences through immersion into one or more of our research and development programs. While at APL, you will have an ...
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National Security Space

Johns Hopkins APL’s National Security Space Mission Area enables mission partners at all levels of government to realize highly classified and critically important missions for national security.
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Theater Defense

Johns Hopkins APL’s Theater Defense Mission Area creates innovative and effective system solutions to defend forward-deployed U.S. forces, allies, and partners across the globe from the threat of air ...