#OTD in 1986 #OV-099 #Challenger and her crew were lost 73 seconds after liftoff on STS-51L.  @ExploreSpaceKSC has a memorial to Scobee, Smith, McNair, Onizuka, Resnik, Jarvis, and McAuliffe as part of the Atlantis exhibit which includes a recovered piece of Challenger.
#OTD #OV #Challenger