The United Launch Alliance Atlas V rocket reaches another major milestone on the road to T-Zero, as NOAA’s GOES-S spacecraft prepares for launch. Stacking the rocket begins with the booster – the largest component – and continues with the addition of four solid rocket motors and the Centaur upper stage. GOES-S, the next in a series of advanced weather satellites, is slated to launch aboard the Atlas V from Cape Canaveral Air Force Station in Florida.