News & Events Recent NewsUpcoming EventsAnnual EventsPhD DefensesSpecial Events Toggle Special Events Commencement 2023Past EventsApplied Physics/Physics Colloquium Toggle Applied Physics/Physics Colloquium Guidelines for HostsGuidelines for SpeakersColloquia Archives Announcements Faculty In the News Sidney Drell, Stanford theoretical physicist and national security expert, dies at 90 December 22, 2016