This feature-length documentary looks at the history of the most complex machine ever built. For 30 years, NASA's space shuttle carried humans to and from .<br /><br /><br /><br />video for embedding at NASA Space Shuttle retrospective documentary upon retiring of the fleet, .<br /><br />This feature-length documentary looks at the history of the most complex machine ever built. For 30 years, NASA's space shuttle carried humans to and from .<br /><br />video for embedding at NASA Space Shuttle retrospective documentary upon retiring of the fleet, .