CAPE CANAVERAL, FL - NOVEMBER 3: NASA Space Shuttle Discovery sits behind the protective rotating service structure on launch pad 39-A at the Kennedy Space Center November 3, 2010, in Cape Canaveral,... more 
CAPE CANAVERAL, FL - NOVEMBER 3: NASA Space Shuttle Discovery sits behind the protective rotating service structure on launch pad 39-A at the Kennedy Space Center November 3, 2010, in Cape Canaveral, Florida. Discovery is scheduled for its final flight to launch November 4 to the International Space Station. The launch was previously delayed due to a failure of a back-up engine controller during prelaunch checkouts. Mission STS-133 is the last scheduled mission for Discovery as the space shuttle program comes to an end. (Photo by Matt Stroshane/Getty Images) less 
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Getty Images | Photo By Matt Stroshane / Getty Images
Wed, Nov 3, 2010 7:30 PM EDT