The Space Exploration Technologies or SpaceX Falcon 9 rocket rolls out of its processing hangar for a wet dress rehearsal.

The Space Exploration Technologies, or SpaceX, Falcon 9 rocket rolls out of its processing hangar toward Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida for a wet dress rehearsal. During the rehearsal, the rocket will be fully fueled and launch controllers will perform a countdown demonstration. The rehearsal is in preparation for the company's first Commercial Resupply Services, or CRS, mission to the International Space Station aboard the Dragon capsule.
The SpaceX CRS contract with NASA provides for 12 cargo resupply missions to the station through 2015, the first of which is targeted to launch in October 2012.SpaceX became the first private company to berth a spacecraft with the space station in 2012 during its final demonstration flight under the Commercial Orbital Transportation Services, or COTS, program managed by NASA's Johnson Space Center in Houston. Photo credit: NASA/Jim Grossmann