The 28th January 1986 is a very bad day in space history, especially for USA. Just in this day, the mission STS-51-L aborted after only 73 seconds, because of the explosion of the Challenger Space Shuttle, that killed all the 7-members crew.
A spill of flames, due to a failure of an O-Ring, caused a structural failure to the external tank, full of liquid hydrogen and liquid oxygen. None of the 7 crew members survived. In memory of
Dick Scobee, Michael John Smith, Judith Resnik, Ellison Onizuka, Ronald McNair, Gregory Jarvis and the first ever teacher on a space mission Christa McAuliffe
From the NBC archive
