George Diller is a specialist in the NASA public affairs office (PAO) at the Kennedy Space Center. He provides public announcements and commentary before and during launches from the Kennedy Space Center, including the space shuttle and unmanned spacecraft such as the Mars rovers Spirit and Opportunity. Diller provided launch commentary from the launch of STS-27 through STS-135 the final launch of the program. He is also known for his "liftoff line" he gave as the shuttle and other vehicles lifted off the pad.