> The cause of the disaster was the failure of the two redundant O-ring seals in a joint in the shuttle's right solid rocket booster (SRB). https://en.m.wikipe

> The cause of the disaster was the failure of the two redundant O-ring seals in a joint in the shuttle's right solid rocket booster (SRB). https://en.m.wikipedia.org/wiki/Space_Shuttle_Challenger_disaster https://en.m.wikipedia.org/wiki/Space_Shuttle_Challenger_dis...