On January 28, 1986, Challenger lifted off carrying seven people, including New Hampshire teacher Christa McAuliffe, who planned to teach lessons from space. Just 73 seconds later, the shuttle disintegrated. As debris spread across the sky, a range safety officer commanded the destruction of the still-flying rocket boosters to protect people below. Flight director Jay Greene directed controllers to begin contingency procedures, preserving information that would help investigators reconstruct the catastrophe. All seven crew members died.
The Rogers Commission traced the disaster to a failed O-ring seal in the right solid rocket booster, compromised by unusually cold conditions. Engineers’ objections had not stopped the launch. Investigators also exposed failures in communication and management, making clear that this was more than a mechanical breakdown. Shuttle flights stopped for over two years while NASA introduced changes. For the families left behind, however, no investigation or redesign could restore the futures lost that morning.
President Reagan and Nancy Reagan and families of the “Challenger” victims at the memorial service for the space shuttle crew in Houston Texas / Wikipedia Commons