Challenger crew likely survived explosion before tragic plunge to Earth, book claims
The air-and-space” target=”_blank”>Space Shuttle Challenger< morning had stiffened the rubber O-rings that held the booster sections together, containing the explosive fuel inside. The rings failed to expand fully in the cold, leaving a gap of less than a millimeter between booster sections. It was enough. The breach allowed a few grams of superheated fuel to…