Work is under way to separate space shuttle Atlantis from the Shuttle Carrier Aircraft, or SCA, underneath via the mate/demate device on the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. Workers are removing the struts that attached Atlantis to the SCA. A hoist attached to Atlantis will suspend the shuttle while the SCA is moved away. Photo credit: NASA/Jack Pfaller June 3, 2009