The Stage 0 motor for the launch vehicle arrives at Vandenberg Air Force Base in California.

The Stage 0 motor for the Taurus XL launch vehicle arrives at Vandenberg Air Force Base in California. The motor will be transported to Orbital Sciences' Hangar 1555. The Taurus XL will launch NASA's Orbiting Carbon Observatory, or OCO, spacecraft targeted for Jan. 15. The OCO is a new Earth-orbiting mission sponsored by NASA's Earth System Science Pathfinder Program. Photo credit: NASA/Randy Beaudoin, VAFB