Was It An Accident Or Was It An Error? What is an accident? Briefly, it is a sudden and unforeseen event. Given that definition, can we say that the Apollo fire that killed three astronauts on the launch pad, and the Challenger disaster, were accidents? The first Apollo fatalities were due to a fire that occurred when the spacecraft cabin was charged with pure oxygen during a test. Unfortunately, there was an electrical short under the seat of one of the astronauts. Oxygen fed the resulting fire. The men could not escape because of a poorly designed escape hatch that took too...