Alumnus Dave Schof ’56 returned to his alma mater to visit with two of Mr. Matt Firmin’s ’10 Environmental Science classes. Schof explained the fresh air system he helped design for the Apollo space program. At the time, Schof was a graduate student on a NASA scholarship at Tulane. He also talked about NASA’s Constellation program, established with the goal of taking a man to Mars. Schof is a volunteer with the Blue Jay Band and an active member of the Class of 1956.