NASA fuels space shuttle Endeavour for 7a.m. launch

NASA has started fueling space shuttle Endeavour at launch pad 39-A at Kennedy Space Center in preparation for launch at 7:17 a.m. EDT Saturday to the international space station. Engineers began pumping a half-million gallons of super cold liquid oxygen and hydrogen into Endeavour's external tank at around 10 p.m. Friday. So far the countdown has been trouble-free and the weather looks like