NASA astronaut and WUSTL alum Robert Behnken, Ph.D. (right), visits with his former professor, Salvatore P. Sutera, Ph.D. (left), interim dean of the School of Engineering & Applied Science and senior professor of biomedical engineering, and Philip V. Bayly, Ph.D., the Lilyan and E. Lisle Hughes Professor in Engineering and chair of the Department of Mechanical, Aerospace and Structural Engineering. Behnken took the first space flight of his career in March 2008 aboard the space shuttle Endeavor, which launched the International Space Station. He returned home to St. Louis to be grand marshal for the Thanksgiving Day Parade and made a point to stop by the Danforth Campus, getting a student-guided tour before settling in with Sutera and Bayly.