Thunderstorms have forced NASA to delay Sunday evening's launch of space shuttle Endeavour, making it the fourth time the shuttle is delayed.
We had some colliding sea breezes, launch director Pete Nickolenko radioed to the Endeavour crew. We're going to have to declare a scrub for today and try to bring the team back for another attempt tomorrow.
The launch was rescheduled for 6:51 p.m. EDT on Monday. Meteorologists predicted a 60 percent chance the weather would not be good enough.
NASA has until Tuesday, possibly Wednesday, to launch Endeavour with the final piece of Japan's space station lab. Otherwise, it will have to wait until the end of July because of a Russian supply ship, which is awaiting liftoff.