In Orbiter Processing Facility 1 at NASA's Kennedy Space Center has been closed by technicians for testing.

In Orbiter Processing Facility-1 at NASA's Kennedy Space Center in Florida, the airlock hatch located in shuttle Atlantis' cargo bay, has been closed by technicians for testing. Atlantis and is being prepared for the STS-135 mission, which will deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. Atlantis is targeted to launch June 28, and will be the last shuttle flight for the Space Shuttle Program. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Jim Grossmann