George Diller introduces the STS-120 crew after their successful landing aboard Discovery earlier in the day.

Moderator George Diller, public information officer at the NASA News Center at NASA's Kennedy Space Center, introduces the STS-120 crew after their successful landing aboard space shuttle Discovery earlier in the day. From left are Commander Pamela Melroy, Pilot George Zamka and mission specialists Scott Parazynski, Stephanie Wilson and Doug Wheelock. The crew completed a 15-day mission to the International Space Station with a smooth landing on Runway 33. Main gear touchdown was 1:01:16 p.m. Wheel stop was at 1:02:07 p.m. Mission elapsed time was 15 days, 2 hours, 24 minutes and 2 seconds. Mission STS-120 continued the construction of the station with the installation of the Harmony Node 2 module and the relocation of the P6 truss. Photo credit: NASA/George Shelton