Progress M-6 was a Soviet unmanned cargo spacecraft which was launched in 1991 to resupply the Mir space station. The twenty-fourth of sixty four Progress spacecraft to visit Mir, it used the Progress-M 11F615A55 configuration, and had the serial number 205. It carried supplies including food, water and oxygen for the EO-8 crew aboard Mir, as well as equipment for conducting scientific research, and fuel for adjusting the station's orbit and performing manoeuvres.