: Flew the final mission of the program (STS-135) in July 2011.
Five flight-worthy orbiters were constructed for the program: The Space Shuttle
The Space Shuttle, officially known as the , was the world’s first partially reusable spacecraft, operating from 1981 to 2011. Over 30 years, the program flew 135 missions , launched 355 people from 16 countries, and traveled more than 542 million miles. : Flew the final mission of the program
: The "workhorse" of the fleet, it flew 39 missions, including the launch of the Hubble Space Telescope. : The "workhorse" of the fleet, it flew
40 Years Ago: Space Shuttle Enterprise rolls to the Pad - NASA
: A prototype used for atmospheric flight tests; it never flew in space but is currently on display at the Intrepid Sea, Air & Space Museum. How It Worked