S118-E-09187 (18 Aug. 2007) --- The STS-118 and Expedition 15 crews gather for a farewell ceremony in the Zvezda Service Module of the International Space Station. Pictured are astronauts Barbara R. Morgan (foreground), Tracy Caldwell (left) and Rick Mastracchio, all STS-118 mission specialists; along with Scott Kelly (right), STS-118 commander. Hatches were closed between the station and Space Shuttle Endeavour at 4:10 p.m. on Aug. 18.