Long remembered, and with deep respect it was announced that Lew Allen Jr., AIAA Honorary Fellow and former Air Force chief of staff who headed NASA's Jet Propulsion Laboratory from 1982 to 1990, died Monday, January 4 in Potomac Falls, Virginia.

During his tenure at NASA's JPL, Allen oversaw the launches of the Magellan spacecraft to Venus and the Galileo mission to Jupiter, as well as the Voyager 2 spacecraft's explorations of Uranus and Neptune. Allen also held various intelligence positions, including becoming head of the National Security Agency in 1973. The community mourns the passing of this renowned propulsion pioneer and visionary, and extends its heartfelt condolences to his family and his many friends.