Endeavour Grand Opening Ceremony

NASA Astronauts, from left, Danny Olivas, Garrett Reisman, Barbara Morgan, and, NASA Associate Administrator for Education and Astronaut, Leland Melvin give high fives to school children as they enter the California Science center's Samuel Oschin Space Shuttle Endeavour Display Pavilion, Tuesday, Oct. 30, 2012, in Los Angeles. Endeavour, built as a replacement for space shuttle Challenger, completed 25 missions, spent 299 days in orbit, and orbited Earth 4,671 times while traveling 122,883,151 miles. Photo Credit: (NASA/Bill Ingalls)