Space shuttle launch delayed again
Space shuttle Discovery's final launch has been delayed again - this time because of stormy weather.
Nasa delayed the lift-off until Friday as heavy rain was pounded Cape Canaveral, Florida.
Managers will meet again early on Friday to evaluate the weather.
If lift-off goes ahead, it would be at 3.04pm local time (7.04pm GMT).
Nasa has until Sunday to launch Discovery, otherwise the shuttle will remain grounded until the beginning of December because of unacceptable solar angles.
Discovery's trip has already been delayed by gas leaks and an electrical problem, and the mission to the International Space Station is now running four days late.
When it does finally lift-off, it will be the final flight for Nasa's oldest surviving shuttle.