Rescuing the Abandoned Salyut 7 Space Station.
In 1985, the Soviet Union's Salyut 7 space station suffered a series of electrical and other faults, causing it to tumble towards Earth's atmosphere. Cosmonauts Vladimir Dzhanibekov and Viktor Savinykh were sent on a rescue mission aboard Soyuz T-13 and managed to revive the station using its remaining battery charge and the Soyuz's thrusters. Salyut 7 continued to perform its duties until 1991, when it was replaced by the Mir space station. The final module of the Salyut program, DOS-8, is still in orbit today as part of the International Space Station.