Clouds today delayed the launch of space shuttle Endeavour.
NASA called everything off with just nine minutes left in the countdown. The band of low clouds started moving into the area late last night and forced the delay.
Launch managers said they would try again tomorrow. Slightly better weather was expected.
Endeavour is loaded with a new room for the International Space Station, as well as an observation deck.
The new launch time will be 4.14am (9.14am). It’s expected to be the final shuttle launch in darkness. Only five shuttle missions remain. This one will be the last big construction job.