Tags: Washington , Endeavour , Space shuttle , NASA

Washington: US space agency NASA on Sunday postponed the launch of its space shuttle Endeavour by at least one day due to a low cloud ceiling over Kennedy Space Centre in Florida.

Launch managers initially plan for a 24-hour turnaround, but will evaluate Monday's weather before making a final decision. Next possible launch attempt is 0914 GMT on Monday, media reported.

"We tried really, really hard to work the weather. It was just too dynamic," launch director Mike Leinbach told the six astronauts aboard Endeavour. "We just were not comfortable with launching the space shuttle tonight."

Endeavour has been scheduled to lift off Sunday morning, on a 13-day construction mission to the orbiting International Space Station (ISS).

Endeavour's mission will deliver and assemble Node 3, the last US module, onto the ISS.

The mission will kick off the final year of shuttle flights, with five missions planned through September.

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