Soyuz TM-21 was a crewed spaceflight mission launched on March 2, 1995, as part of the Soyuz program. It transported a three-member crew to the Mir space station, marking the 21st mission of the Soyuz TM series. The mission lasted approximately 179 days, during which the crew conducted scientific experiments and maintenance on the station. The crew consisted of Yuri Malyshev, Talgat Musabayev, and Alexander Balandin. They successfully returned to Earth on September 7, 1995, landing in Kazakhstan. Soyuz TM-21 contributed to the ongoing research and international collaboration in space exploration during the era of the Russian space program.