Soyuz T-15 (,
Union T-15) was a manned mission to the
Mir and
Salyut 7 space stations and was part of the
Soyuz programme. It marked the final flight of the
Soyuz-T spacecraft, the third generation
Soyuz spacecraft, which had been in service for seven years from 1979 to 1986. This mission marked the first time that a spacecraft visited, and docked with, two space stations in the same mission.