Thirty years ago on January 28, seven astronauts were killed when the Challenger space shuttle exploded just 73 seconds after launch. One of those seven astronauts was Christa McAuliffe.

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William Lucas was the director of the Marshall Space Flight Center in Huntsville, Alabama, when the Challenger exploded on ...

The Challenger disaster, a tragic day in space exploration history, took place on January 28, 1986. Just 73 seconds after launch, the Space Shuttle Challenger exploded, leading to the loss of ...

which supervised the design and building of the booster rocket whose failure caused the fatal breakup of the Challenger in Florida just 73 seconds after liftoff. The sickening explosion ...

Lucas was director of the Marshall Space Flight Center in Huntsville when the Challenger exploded on Jan. 28, 1986, just 73 seconds after liftoff from Cape Canaveral, Florida. It was the deadliest ...