A truck carries the first stage of the SpaceX Falcon 9 rocket through the gate at Cape Canaveral Air Force Station in Florida.
The two-stage rocket will launch the company's Dragon spacecraft on the upcoming SpaceX CRS-2 mission. The flight will be the second commercial resupply mission to the International Space Station by Space Exploration Technologies, or SpaceX. NASA has contracted for a total of 12 commercial resupply flights from SpaceX and eight from the Orbital Sciences Corp. Photo credit: NASA/Jim Grossmann