S118-E-09191 (18 Aug. 2007) --- Astronaut Charlie Hobaugh (left), STS-118 pilot, and cosmonaut Fyodor N. Yurchikhin, Expedition 15 commander representing Russia's Federal Space Agency, enjoy a light moment during a farewell ceremony in the Zvezda Service Module of the International Space Station. Hatches were closed between the station and Space Shuttle Endeavour at 4:10 p.m. on Aug. 18.