What happens to space shuttle rocket boosters?
Divers close off the bottom each booster and pump them with compressed air to remove the seawater. The now floating boosters are towed by each ship back to the Kennedy Space Center where they are disassembled and returned via rail to Thiokol in Utah for refurbishment and repacked with solid propellent. Segments of the boosters are returned via rail to the Kennedy Space Center for use on a future shuttle mission.