

With no clear vision of its future, NASA will cling a bit longer to its past, pushing the space shuttle retirement date off until March 2011 at the earliest.
That’s when shuttle Endeavour is now scheduled to return from the 134th and final mission in the 30-year-old shuttle program. It will deliver a 7.5-ton particle detector known as the Alpha Magnetic Spectrometer, the most expensive and highest profile science experiment planned for the International Space Station.
NASA managers decided this week to delay launching its last two remaining shuttle flights to Nov. 1 and Feb. 26 to allow more time to prepare a load of spare parts for the station to fly on shuttle Discovery. Launch had been targeted for September.
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