Secretary of the Air Force Heather Wilson and National Science Foundation Director France Córdova answer questions after signing a letter of intent in Washington, D.C., May 9, 2018. The letter of intent initiates a strategic partnership focused on research in four areas of common interest: space operations and geosciences, advanced material sciences, information and data sciences, and workforce and processes. (U.S. Air Force photo by Staff Sgt. Rusty Frank)