Jul
13
Watching NASA TV now and there seems to be a problem with one of the fuel cut-off valve sensors. The launch director has halted the countdown and has said the shuttle will not be launching today.
The crew was already in the Shuttle, strapped in and ready to go. They are now disembarking.
There is talk about emptying the fuel tanks entirely to troubleshoot the problem, which of course would cause further delay.
Press conference will follow.
