Fact-based drama about American physicist Richard Feynman's determination to reveal the truth behind the 1986 Challenger space shuttle disaster. When the craft exploded 73 seconds after lift-off on January 28, leading to the deaths of all seven crew members, it was the most shocking event in the history of US spaceflight, and a presidential commission was immediately convened to investigate what went wrong. Starring William Hurt, Bruce Greenwood, Brian Dennehy, Kevin R McNally and Joanne Whalley