Space... the Final Frontier.. And the final launch
NASA clears shuttle Endeavour for April 29 launch
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Analysis & Opinion
Space shuttle Endeavour STS-134 commander Mark Kelly (C) waves while departing for launch pad 39A with crew members (from L to R) pilot Gregory Johnson, European Space Agency astronaut Roberto Vittori, mission specialists Greg Chamitoff, Michael Fincke and Andrew Feustel, during the terminal countdown demonstration test at the Kennedy Space Center in Cape Canaveral, Florida April 1, 2011.
Credit: Reuters/Scott Audette
CAPE CANAVERAL, Florida | Wed Apr 20, 2011 4:16am EDT
(Reuters) - The shuttle Endeavour was cleared for a launch attempt on April 29 to deliver a new class of physics instrument to the International Space Station on NASA's next-to-last shuttle flight, officials said Tuesday.
Liftoff of the 134th shuttle mission is scheduled for 3:47 p.m. EDT (1947 GMT) from the Kennedy Space Center in Florida.
The all-veteran crew is led by Mark Kelly, husband of Arizona Democratic Representative Gabrielle Giffords, who is recovering from a January 8 shooting that killed six people and injured 12 others.
Pending approval from her doctors, Giffords, who has not been seen publicly since the attack outside a Tucson, Arizona, grocery store, plans to attend the launch, Kelly has said.
The primary purpose of the flight is to deliver the $2 billion Alpha Magnetic Spectrometer, or AMS, particle detector, an instrument designed to detect dark matter, antimatter and other exotic phenomena.
"It has the potential of returning really Earth-shattering science," said NASA's Bill Gerstenmaier.
A team of 600 scientists from 16 nations, including China and Taiwan, are partners in the project.
After installing AMS the Endeavour astronauts will turn their attention to four spacewalks and other tasks to help get the space station ready for operations without shuttle support. The station is a $100 billion project of the United States, Russia, Europe, Japan and Canada that has been under construction since 1998, 220 miles (350 km) above Earth.
After one final shuttle flight in June to deliver a year's worth of supplies, the station will depend on smaller cargo ships from Russia, Europe and Japan.
Endeavour, which will be making its 25th and final space mission, is expected to stay in orbit up to 16 days.
Sister ship Discovery completed its last mission on March 9. The shuttle Atlantis is targeted for launch on June 28 to complete the 30-year-old shuttle program. The fleet is being retired due to high operating costs and to free up funds to develop new spacecraft.
(Editing by Jane Sutton and Cynthia Osterman)
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