Progress M-8 (Russian: Прогресс М-8) was a Soviet uncrewed cargo spacecraft which was launched in 1991 to resupply the Mir space station.

[4] It carried supplies including food, water and oxygen for the EO-9 crew aboard Mir, as well as equipment for conducting scientific research, and fuel for adjusting the station's orbit and performing manoeuvres.

[5] Progress M-8 was launched at 08:04:03 GMT on 30 May 1991, atop a Soyuz-U2 carrier rocket flying from Site 1/5 at the Baikonur Cosmodrome.

[4] Following two days of free flight, it docked with the forward port of Mir's core module at 09:44:37 GMT on 1 June.

[1] Progress M-8 undocked from Mir at 22:16:59 GMT on 15 August, and was deorbited the next day, to a destructive reentry over the Pacific Ocean at around 06:59:32.