KENNEDY SPACE CENTER -- Low clouds forced NASA to delay the launch of space shuttle Discovery Thursday night. Strong winds around Kennedy Space Center could delay another attempt for a day or two.
NASA managers waited until the end of the countdown before deciding to call off the launch scheduled for 9:35 p.m. eastern time.
Earlier in the day, NASA Administrator Michael Griffin said NASA likely would wait until Saturday before trying again.
The Friday forecast was even worse than Thursday's, with only a 10 percent chance for launching. It would have been the first launch at night in four years.
Once they take off, the astronauts will have 12 busy days ahead of them -- re-wiring the space station and swapping out a crew member.
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