NASA Orbiting Carbon Observatory on a Taurus XL Ready for Launch

VANDENBERG AIR FORCE BASE, Calif. -- The launch of NASA's Orbiting Carbon Observatory, or OCO, aboard a Taurus XL rocket is scheduled for Feb. 24. Liftoff from Space Launch Complex 576-E at Vandenberg Air Force Base, Calif., is set for 1:51:30 a.m. PST during a 4-and-a-half-minute launch window. The spacecraft's final polar orbit will be 438 miles.OCO is NASA's first