Paul Lagacé, a professor of aeronautics and astronautics at MIT, died July 16 in his home in Wilmington, Massachusetts. He was 63. A longtime member of the MIT community, Lagacé graduated from Course 16 (aeronautics and astronautics) with his bachelor’s degree in 1978, his master’s in 1979, and his PhD 1982. He joined the faculty in the Department of Aeronautics and Astronautics in 1982. Lagacé’s research focused on the design and manufacture of composite structures and materials mainly used in the aerospace industry. The work of his research laboratory, the…