Space Shuttle Discovery on display at the James S. McDonnell Space Hanger. Space Shuttle Discovery was used for 39 missions starting with it's first flight on August 30, 1984. Discovery had spent 365 days, 22 hours, 39 minutes, 33 seconds in flight with it's last launch on February 24, 2011 and had traveled a total of 148,221,675 mi (238,539,663 km). Imaged with a Canon T2i and a Tamron 18-270mm f/3.5-6.3 (3.5) lens.