Progress-M (Russian: ΠΡΠΎΠ³ΡΠ΅ΡΡ-Π, GRAU indices 11F615A55 and 11F615A60), also known as Progress 7K-TGM, is a Russian (formerly Soviet) spacecraft used to resupply space stations. It is a variant of the Progress series, originally developed in the late 1980s as a modernized version of the Progress 7K-TG spacecraft. The Progress-M incorporated new systems derived from the Soyuz-T and Soyuz-TM spacecraft. The 11F615A60 variant introduced further upgrades, including the replacement of analog flight control systems with digital ones.
The first 43 Progress-M spacecraft were used to resupply Mir, with later missions supporting the International Space Station (ISS). A total of 87 Progress-M spacecraft were launched, 67 of the older 11F615A55 model and 30 of the newer 11F615A60 version. One spacecraft, Progress M-12M, was lost in a launch failure in August 2011. Another, M-27M, launched on 28 April 2015 but lost communication and control shortly after reaching orbit and re-entered Earth's atmosphere and burned up.