Astronaut George Zamka, STS-120 pilot, is seated at the pilot's station on the forward flight deck of the Space Shuttle Discovery during rendezvous and docking operations with the International Space Station (ISS). The STS-120 mission launched from Kennedy Space Center's launch pad 39A at 11:38:19 a.m. (EDT) on October 23, 2007. The crew also included Scott E. Parazynski, Douglas H. Wheelock, Stephanie D. Wilson, all mission specialists; Pamela A. Melroy, commander; Daniel M. Tani, Expedition 16 flight engineer; and Paolo A. Nespoli, mission specialist representing the European Space Agency (ESA). Major objectives included the installation of the P6 solar array of the port truss and delivery and installment of Harmony, the Italian-built U.S. Node 2 on the ISS.