STS-94
After quickly evaluating and fixing Columbia’s fuel cell problem on STS-83, the STS-94 mission was launched only 88 days later on 1 July 1997, a record that still stands today for the shortest time between flights involving the same crew, vehicle, and payload.
During the mission the crew completed 33 different investigations into plant growth, biotechnology, fluids science, materials processing, and combustion science. During the mission new facilities and science capabilities were evaluated that would be later used on the International Space Station.