The launch of space shuttle Endeavour has been delayed again after heavy storms in America.
The launch has now been put back four times. Nasa hope Endeavour will blast off at 6.51pm in America on Monday (10.51pm in the UK).
Nasa made the decision to call of the launch minutes before the shuttle was scheduled to take off from Cape Canaveral in Florida.
The shuttle will take extra equipment to the International Space Station.
The shuttle itself was not hit by the lightning strikes
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When the shuttle does get to the ISS its seven crew members will join the six astronauts already on board.
That makes 13, which will be a record for the ISS.
On Friday the area near the shuttle's launch platform was struck 11 times by lightning, but Nasa are sure no damage has been caused.