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National Security Sciences

Our science secures the nation

From climate change and cyber attacks to nuclear proliferation and critical infrastructure vulnerabilities, the threats to America’s national security continue to evolve and emerge at a rapid pace. 

We face these challenges head on, capitalizing on ORNL's unique scientific assets to deliver real-world solutions that protect the people, infrastructure, and economy of the United States.

Our Science

Our Story

Our Science: Helping secure the nation

ORNL's National Security Sciences Directorate is rapidly advancing the science of resilience, security, and analytics to solve critical challenges in nuclear security, cybersecurity, and human security.

Our People: Serving with Passion

It's a passion. A calling to serve an important mission. Hear why our researchers come to work every day to deliver the science that secures the nation.

Our People: Tackling Big Challenges

Our people are tackling the biggest challenges in national security, often working behind the scenes.