One was taken from the shuttle Challenger 20 years ago this month.

Officials admitted that was a mistake after the shuttle Challenger exploded in 1986.

Nearly everyone here recalls the slump that followed the destruction of the shuttle Challenger 17 years ago.

The company, which built the booster blamed for the destruction of the shuttle Challenger, said it would not to bid on a new contract.

The shuttle Challenger's explosion in January 1986 was the most stunning disaster.

The launching was originally set for 1985, but development problems and then the explosion of the shuttle Challenger forced a long postponement.

But many of the worst problems were hidden until the shuttle Challenger exploded on Jan. 28, 1986.

But in 1986, the shuttle Challenger exploded at 73 seconds of takeoff, killing the seven astronauts aboard.

The incident occurred a few days before the fatal liftoff of the shuttle Challenger on Jan. 28, 1986.

It's the serial number off the Shuttle Challenger combined with its last mission number.