What key role did *Discovery* play immediately following the *Challenger* disaster?

Answer

It flew the return-to-flight mission (STS-26) in 1988.

Discovery's return to flight mission, STS-26, proved the efficacy of NASA's safety modifications and resumed the shuttle manifest after a gap of over two and a half years.

What key role did *Discovery* play immediately following the *Challenger* disaster?
NASAMissionsSpace Shuttleflights