The Space Shuttle Discovery flew the first post-Challenger return-to-flight mission. Designated STS-26, it launched from Kennedy Space Center on September 29, 1988, marking NASA’s return to crewed shuttle operations after the Challenger disaster in January 1986.
STS-26 carried five astronauts: Frederick Hauck, Richard Covey, John Lounge, David Hilmers, and George Nelson. Its main objective was deploying the TDRS-3 communications satellite, which helped support communications with spacecraft and ground stations. Discovery completed the mission safely and landed at Edwards Air Force Base on October 3, 1988.
A common mix-up is confusing the orbiter with the mission designation. Challenger’s final flight was STS-51-L, while Discovery’s return mission was STS-26. The mission also introduced extensive safety changes, including redesigned solid rocket booster joints and revised launch procedures, before the shuttle program resumed regular flights.