The Space Shuttle Endeavour flies by the Hollywood sign and Griffith Observatory as it arrives in Los Angeles on the back of a 747 en route to Los Angeles International Airport September 21, 2012. Endeavour will be moved to its permanent home at the California Science Center mid-October. REUTERS/Patrick T. Fallon (UNITED STATES)

The Space Shuttle Endeavour flies with it’s escort as it approaches the Hollywood sign and Griffith Observatory as it arrives in Los Angeles on the back of a 747 en route to Los Angeles International Airport September 21, 2012. Endeavour will be moved to its permanent home at the California Science Center mid-October. REUTERS/Patrick T. Fallon (UNITED STATES)

The Space Shuttle Endeavour flies over the Hollywood sign and Griffith Observatory as it arrives in Los Angeles on the back of a 747 en route to Los Angeles International Airport September 21, 2012. Endeavour will be moved to its permanent home at the California Science Center mid-October. REUTERS/Patrick T. Fallon (UNITED STATES)

People watch from the hillside as the Space Shuttle Endeavour approaches the Hollywood sign and Griffith Observatory as it arrives in Los Angeles on the back of a 747 en route to Los Angeles International Airport September 21, 2012. Endeavour will be moved to its permanent home at the California Science Center mid-October. REUTERS/Patrick T. Fallon (UNITED STATES)

The Space Shuttle Endeavour approaches the Hollywood sign and Griffith Observatory as it arrives in Los Angeles on the back of a 747 en route to Los Angeles International Airport September 21, 2012. Endeavour will be moved to its permanent home at the California Science Center mid-October. REUTERS/Patrick T. Fallon (UNITED STATES)