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NASA decided to postpone launch of space shuttle Discovery after its managers concluded that more data and possible testing are required before proceeding to launch.

"We need to complete more work to have a better understanding before flying," said Bill Gerstenmaier, associate administrator for Space Operations at NASA Headquarters in Washington. Gerstenmaier chaired Friday's Flight Readiness Review.

"We were not driven by schedule pressure and did the right thing. When we fly, we want to do so with full confidence."

Discovery's latest mission to the ISS was planed originally for 12th February.

Discovery will deploy latest set of solar arrays to International Space Station.

Foto by: NASA.gov