"Liftoff is scheduled for 2:45 p.m. EST, which is the middle of the 10-minute launch window. The timing is precise so Atlantis can catch up and dock with the International Space Station.
Forecasters expect a cold front to move over Kennedy around launch time, bringing with it clouds and storms, resulting in only a 30-percent chance of good weather for liftoff. Further, there is a possibility that the front may stall over Central Florida, providing only slightly better chances for acceptable weather for launch attempts on Friday or Saturday."
more at NASA.govColumbus Lab in the Shuttle Payload Bay
Labels: NASA, Science, Space Shuttle, STS-122