Challenger Explosion: Core Events of a Space Tragedy

After pushing back the flight several times, the Challenger Space Shuttle was ready to launch. On January 28, 1986, the shuttle lifted off. Just 73 seconds into the flight, tragedy struck. Without warning, the Challenger exploded in front of stunned spectators, killing everyone on board. Readers will learn what caused this horrible disaster and the lasting effects to NASA and the space program.