On this day in 1986, 73 seconds after a perfect takeoff from Cape Canaveral, The Space Shuttle Challenger exploded 9 miles into space killing all on board. Those lost were Commanders Francis "Dick" Scobee and Michael J. Smith, Dr. Judith A Resnik, Dr. Ronald E. McNair, Lt. Colonel Ellison S. Onizuka, Gregory B. Jarvis and school teacher Christa McAullife. Millions watched the events unfold live on TV. Where were you when you heard the news?