Pamela Melroy takes part in a news conference after the crew's successful landing aboard Discovery at NASA's Kennedy Space Center.

STS-120 Commander Pamela Melroy takes part in a news conference after the crew's successful landing aboard space shuttle Discovery at NASA's Kennedy Space Center. 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/Kim Shiflett