Standing underneath Discovery on the Shuttle Landing Facility Mike Griffin talks after the landing of the vehicle.

Standing underneath space shuttle Discovery on the Shuttle Landing Facility at NASA's Kennedy Space Center, NASA Administrator Mike Griffin, right, talks with STS-120 Commander Pamela Melroy, center, after the landing of the vehicle. At left is Rebecca Griffin, wife of the administrator. The Discovery crew completed the 15-day mission STS-120, with an on-time landing at 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