STS-51-L crew: (front row) Michael J. Smith, Dick Scobee, Ronald McNair; (back row) Ellison Onizuka, Christa McAuliffe, Gregory Jarvis, Judith Resnik. 26 Years ago today the world suffered a tragedy when The US Challenger Exploded 73 sec after take off at 11:39AM Eastern standard. I was in the 4th or 5th grade and we were watching it since it was the 1st time a teacher, Christa McAuliffe, was going up into space, and all of our teachers were excited which made us kind of excited, and as we watched in disbelief, we couldn’t believe just that quick….they were gone, But never forgotten! RIP US Challenger Crew. +TatWZA