Todd Citron, chief technology officer, The Boeing Company, left, delivers remarks during a news conference on NASA’s Sustainable Flight Demonstrator project as NASA Administrator Bill Nelson, second from left, Bob Pearce, associate administrator for NASA's Aeronautics Research Mission Directorate, NASA Deputy Administrator Pam Melroy, and Brent Cobleigh, program manager for the Sustainable Flight Demonstrator at NASA's Armstrong Flight Research Center, look on, Wednesday, Jan. 18, 2023, at the Mary W. Jackson NASA Headquarters building in Washington, DC. Through a Funded Space Act Agreement, The Boeing company and its industry team will collaborate with NASA to develop and flight-test a full-scale Transonic Truss-Braced Wing demonstrator aircraft. Photo Credit: (NASA/Joel Kowsky)