At NASA Kennedy Space Center?s Launch Pad 39A, fueling of space shuttle Endeavour?s external fuel tank with more than 500,000 gallons of liquid propellants began at 7:47 p.m. EST. The three-hour process will provide the fuel and oxidizer Endeavour’s three main engines require for the 8 1/2 minute trip to orbit.
There is an 80 percent chance of favorable weather for launch.
NASA Television is providing live commentary of external tank loading and launch commentary and the NASA Launch Blog will begin at 11:30 p.m.