DFRC Center Director Kevin Petersen greets Commander Frederick Sturckow and the crew of the Space Shuttle Atlantis at Edwards, AFB, Calif., on June 22, 2007

DFRC Center Director Kevin Petersen greets STS-117 Commander Frederick Sturckow and the crew of the Space Shuttle Atlantis at Edwards, AFB, Calif., on June 22, 2007. Left to right: DFRC Center Director Kevin Petersen, Commander Frederick Sturckow, Pilot Lee Archambault, and mission specialists Patrick Forrester, Steven Swanson and John D. Olivas.