The Challenger Explosion
It was a horrific day on Jan 28th 1986 in Cape Canaveral, Florida. After 73 seconds of takeoff, Challenger mission STS-51 went up in flames as one of the fuel tanks suddenly exploded destroying the shuttle in midair. Apparently, the O-ring seal in the right rocket booster was not able to withstand the cold conditions, which resulted in the release of pressurized gas to the outside air. When the gas reached the outside air it was only a matter of seconds before it ignited the external fuel tank in the right solid booster. Shortly after the ignition of the fuel tank, it came in contact with the rest of the fuel tanks which spontaneously exploded causing the Challenger to incinerate shortly after takeoff. It is possible that some of the crew survived
even after the explosion because there are images of the separated cabin, however they would have died because of the altitude.