Russia’s Progress MS-25 is an uncrewed spacecraft that will deliver 1,535 kg of resource equipment and tools, experiment setups, clothing, and provisions for the ISS crew. Additionally Progress will carry propellant (500 kg), water for the Rodnik system (420 kg), and nitrogen (40 kg). Overall, this mission will bring approximately 2,495 kg of cargo to the ISS.
Progress MS will separate from the third stage of the Soyuz 2.1a at ~9 min after launch and autonomously dock to the Poisk module (Poisk is the Russian word for “exploration”) two days later. It is used as a research facility, as well as a docking compartment for both Soyuz spacecraft and Progress capsule.
The rocket consists of three stages, all of them are expendable. When launching to the ISS, Soyuz-2 can be flown with either a Progress capsule or a Soyuz spacecraft. On the Progress MS-23 mission, the Progress MS module will be used to deliver cargo to the ISS.