NASA has given the final go-ahead for the...

The agency said "there were no unresolved issues that would prevent Discovery and crew from flying a safe and successful mission."

Discovery is set to lift off from the Kennedy Space Center in Florida at 6:21 a.m. EDT [10:21 GMT].

The launch was initially scheduled for March 18 but was delayed over unusually cold weather.

The STS-131 mission, which is scheduled to last 13 days, will deliver a multi-purpose logistics module filled with science racks for the laboratories aboard the station.

Commander Alan Poindexter will lead the six-astronaut crew on the 33rd shuttle mission to the ISS and the second shuttle flight in 2010.

The mission will feature three spacewalks.

MOSCOW, March 27 (RIA Novosti)