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CAPE CANAVERAL, Fla. – NASA is delaying its incoming expanse shuttle flight — the terminal travel of Endeavour with Rep. Gabrielle Giffords' traveler economise in charge.

The flight was postponed because the example Apr 19 date conflicts with Russia's plans to send a cargo board to the International Space Station.

Endeavour is today regular to twine soured Apr 29 with Mark buffoon at the helm. It module be the next-to-last shuttle mission. Shuttle Atlantis module close discover the 30-year shuttle information this summer.

NASA declared the postponement Monday, after conferring over the weekend with the Slavonic Space Agency and other expanse send partners.

An pilotless Slavonic cargo board is ordered to twine soured at the modify of April. NASA did not poverty the foxiness docking at the expanse send patch Endeavour was ease there. Now, the cargo board module arrive first.

NASA spokesman Allard Beutel said the Russians were reluctant to defer the cater separate because of a time-sensitive natural research aboard the craft.

Kelly and five crewmates module deliver a $2 1000000000 physics research to the expanse station, as well as grave spare parts to ready the orbiting settlement running for another decade.

The two-week assignment module be the terminal for Endeavour, the child of NASA's shuttle fleet. It was shapely to replace Challenger, which was blasted during liftoff in 1986.

The postponement puts the launch, regular for 3:47 p.m., on the aforementioned period as the wedding of Britain's Prince William and Kate Middleton.

Endeavour is checking discover fine at the start aggrandize mass terminal week's severe storms that brought high wind, lightning strikes, hail and even conoid clouds to President Space Center. Only inconsequential alteration was institute on the insulating sparkle of Endeavour's external fuel tank, officials said.

Kelly returned to upbringing in Feb after attractive time soured to be at his wife's hospital bedside. Giffords was shot in the head in Tucson, Ariz., in primeval January. She is recuperating in Houston, bag to buffoon and the rest of NASA's traveler corps. buffoon said terminal hebdomad that he's awaiting doctors' test support for his wife to attend his launch.

In Kazakhstan, meanwhile, digit Russians and an American blasted soured from Kazakh primeval weekday for a trip to the expanse station. They module join three astronauts already in orbit.

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Online:

NASA: http://www.nasa.gov/shuttle

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