Space.comSpaceflightHuman Spaceflight Poll: Which NASA Space Shuttle Do You Love Most? By SPACE.com Staff | December 3, 2012 02:33am ET MORE Which of NASA's space shuttles do you think was the flagship of the fleet? Columbia - It lives in history as the first space shuttle in orbit. Challenger - Its spaceflight career was tragically cut short. Discovery - This shuttle workhorse has earned its place in the Smithsonian. Atlantis - As the last to fly, its spirit soars forever. Endeavour - NASA's youngest shuttle leaves a long legacy of success. Enterprise - A fan favorite that proved the shuttle project would work.