Live at Cape: Centaur stage being fueled

Workers have begun loading more than 4,300 gallons of liquid oxygen into the Centaur upper stage of the United Launch Alliance Atlas V rocket.

The bronze-and-white colored rocket stands 194 feet tall and before fueling weighed 742,000 pounds at Cape Canaveral Air Force Station's Launch Complex 41.

The liquid oxygen will also be loaded into the rocket's core booster. Nearly 26,000 gallons of RP-1, a highly refined kerosene, was previously loaded in the booster during a launch dress rehearsal.

Everything appears on schedule for a 5:12 p.m. liftoff of two NASA satellites bound for the moon.