A. The space shuttle and its crew of seven blasted off Sunday just as the sun was setting.
B. NASA is thrilled to see Discovery finally on its way.
C. That's because Discovery needs to be gone from the space station before a Russian rocket lifts off to put a fresh crew at the space station March 26.
D. The shuttle is carrying a final set of solar wings for the space station that the astronauts will install.
E. A hydrogen leak Wednesday scrapped the first launch attempt. Before that, valve concerns kept postponing the flight that was originally scheduled to launch in Mid - February.
F. Because of the delays, the mission has been short ended by a day and one of four spacewalks has been dropped.
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