VANDENBERG AIR FORCE BASE, Calif. -- At Vandenberg Air Force Base in California, NASA's Aquarius/SAC-D spacecraft, secured inside its payload transportation canister, is being transferred to Space Launch Complex-2.There, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June liftoff. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission.