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Progress MS-31

2025 Russian resupply spaceflight to the ISS From Wikipedia, the free encyclopedia

Progress MS-31
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Progress MS-31 (Russian: Прогресс МC-31), Russian production No. 461, identified by NASA as Progress 92, is a Progress cargo spacecraft launched by Roscosmos to resupply the International Space Station (ISS). It is the 184th flight of a Progress spacecraft.

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Mission

Progress MS-31 was launched on 3 July 2025 at 19:32 UTC.[2] Following a two-day free flight, it docked to the zenith (space-facing) port of the ISS's Poisk module on 5 July at 21:27 UTC.

Cargo

Each Progress mission delivers pressurized and unpressurized cargo to the station. The pressurized section carries consumables such as food, water, and air, along with equipment for maintenance and scientific research. The unpressurized section contains tanks of fuel, water, and gases, which are transferred to the station through automated systems.[3]

For this mission, Progress MS-31 carried a total of 2,625 kg (5,787 lb) of cargo and supplies, including:[4]

  • Pressurized supplies: 1,205 kg (2,657 lb)
  • Fuel: 950 kg (2,090 lb)
  • Water: 420 kg (930 lb)
  • Nitrogen gas: 50 kg (110 lb)
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References

See also

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