CAPE CANAVERAL — NASA has cleared space shuttle Discovery for liftoff Tuesday, and the weather looks promising as long as thunderstorms stay away during fueling.
After meeting Sunday afternoon, managers decided Discovery is in good shape to fly to the International Space Station. A power controller issue — one had to be replaced a week ago in the shuttle — did not stand in the way of the launch.
Forecasters, meanwhile, said there is an 80 percent chance the weather will cooperate for Discovery's 1:36 a.m. liftoff. That's better than previous forecasts.
But there is a 40 percent chance that thunderstorms could interfere with this afternoon's fueling. A fueling delay of more than three hours would bump the flight into the next day.