Reminds me of Apollo 1--a spark in a pure oxygen environment. The astronauts died in less than a minute.
My sister, who was in the Air Force, said she heard rumor the the guys in mission control who heard the screams of the astronauts were never the same. I remember hearing a clip of the astronauts and they said, "There's a fire!" and then it ended abruptly. Shiver. This is one of my two choices on how NOT to go. Drowning's the other. My heart breaks for these people and their relatives.