NASA is fueling space shuttle Discovery again for an early morning launch.
Thunderstorms prevented Discovery from blasting off early Tuesday. Better weather is expected for Wednesday's 1:10 a.m. (0510 GMT) try.
Forecasters put the odds of acceptable conditions at 70 percent. The sky was fairly clear as the launch team began pumping fuel Tuesday afternoon.
Discovery is bound for the international space station. It will haul up thousands of pounds of supplies, including six mice for a bone experiment and a treadmill named for Comedy Central's Stephen Colbert.
NASA has until the end of August to launch Discovery and its seven astronauts. Otherwise, the mission will slide into October because other countries are scheduled to launch their spacecraft.