Divers found wreckage from one of the worst disasters in NASA history off the coast of Florida. They were looking for the wreckage of a World War II airplane, but what they found was much more recent. NASA has confirmed the divers found a piece of the Challenger spacecraft. The Challenger disaster shocked the world on January 28, 1986. Seventy-three seconds after taking off from the Kennedy Space Center, the spacecraft erupted. All seven of its crew members were killed.