Roger Boisjoly

Roger Mark Boisjoly was an American mechanical engineer, fluid dynamicist, and an aerodynamicist. He is best known for having raised strenuous objections to the launch of the Space Shuttle Challenger months before the loss of the spacecraft and its crew in January 1986. Boisjoly correctly predicted, based on earlier flight data, that the O-rings on the rocket boosters would fail if the shuttle launched in cold weather. Morton Thiokol's managers decided to launch the shuttle despite his warnings, leading to the catastrophic failure. He was considered a high-profile whistleblower.

25 April 1938

Born on the same birth date (25 April 1938): Ton Schulten

Born on the same birth day (25 April): Anja Pärson • Charles Sumner Tainter • Connie Marrero • Constantinos Christoforou • Cy Twombly • Darren Woodson • Donnell Deeny • Earl Bostic • Edward R. Murrow • Eric Avery • Foeke Booy • Gedhun Choekyi Nyima • Hank Azaria • Henck Arron • Jacque Jones • Jeffrey DeMunn • Lia Manoliu • Melissa Hayden (dancer) • Robert Skidelsky • Sammy Drechsel • Satou Sabally • Thomas Strunz • Tony Christopher, Baron Christopher

Born in the same month (April 1938): Al Weis • Alan Bond • Colin Bland • Don Meredith • Earl Anthony • Hso Khan Pha • John Weston (diplomat) • Klaus Lehnertz • Larry Niven • Rich Rollins • Spencer Dryden • Steven Bach • Ton Schulten