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The Progress MS-33 ISS resupply 2026 mission marks the resumption of Russian cargo flights to the International Space Station (ISS) from the recently repaired Site 31/6 launch pad at Baikonur Cosmodrome. This launch comes nearly four months after Soyuz MS-28 caused extensive damage to the pad, delaying subsequent missions.
Progress MS-33 ISS Resupply 2026: Launch Schedule
- Launch date: Sunday, March 22, 2026, at 11:59 UTC
- Docking with ISS: Tuesday, March 24, 2026, around 13:34 UTC at the Poisk module
- Cargo load: Over 2,500 kg of food, fuel, and supplies
- Duration docked: Approximately six months before deorbit
The spacecraft, also known as Progress 94 by NASA, will be unloaded and eventually filled with trash for a controlled reentry over the South Pacific.
Damage and Repair at Site 31/6
Soyuz MS-28 Launch Incident
- During the Soyuz MS-28 launch on November 27, 2025, a mobile maintenance cabin under the rocket was improperly secured.
- Launch forces caused the platform to fall into the flame trench, severely damaging the pad.
- Without the platform, Progress and Soyuz launches from Site 31/6 were impossible.
Restoration Efforts
- Roscosmos sourced a spare platform from the 1970s and modified it for current launches.
- The repairs were completed in time to support the spring launch of Progress MS-33.
- Successful repair ensures Russia can continue cargo and crew launches to ISS.
Docking and ISS Operations
Docking Procedures
- Progress MS-33 will dock to the Poisk module, following the recent undocking of Progress MS-31 on March 16.
- Other vehicles at ISS:
- Progress MS-32 docked to Zvezda module’s aft port
- Soyuz MS-28 docked to Rassvet module
Role in ISS Supply Chain
- Supplies include fuel, water, and essential consumables for the Russian segment.
- Docking allows for resupply, orbital reboosts, and continued support of crewed operations.
Historical Context of Baikonur Launch Pads
Site 1/5 (Gagarin’s Start)
- Famous for Sputnik (1957) and Yuri Gagarin’s first human flight (1961).
- Last used for Soyuz MS-15 in 2019; now under Kazakhstan control and set to become a museum.
Site 31/6
- Currently the only operational Russian pad for ISS missions.
- Site 31/6 is critical until the ISS is decommissioned and replaced by Russia’s Orbital Service Station (ROSS).
Vostochny Cosmodrome Limitations
- Cannot currently handle Progress launches or provide safe abort options for Soyuz crewed missions.
Future Russian ISS Missions
- Progress MS-34: Scheduled April 25, 2026
- Soyuz MS-29 crewed launch: Scheduled July 14, 2026
ISS Operational Extension
- NASA Authorization Act of 2026 proposes extending ISS operations until September 30, 2032, ensuring continued collaboration with Russia.
FAQs
What is the launch date of Progress MS-33?
Progress MS-33 is scheduled to launch on March 22, 2026, at 11:59 UTC.
Where will Progress MS-33 dock at the ISS?
It will dock at the Poisk module on March 24, 2026.
Why was Site 31/6 pad repaired?
The pad was damaged during the Soyuz MS-28 launch, when a mobile maintenance cabin fell into the flame trench.
How long will Progress MS-33 remain at the ISS?
It will stay docked for approximately six months before being deorbited with trash.
Conclusion
The Progress MS-33 ISS resupply 2026 mission represents a successful resumption of Russian cargo operations after significant infrastructure repairs. With over 2,500 kg of essential supplies, this launch ensures the continued operation of the Russian segment of the ISS and underscores the importance of Site 31/6 as the primary launch facility for future crewed and uncrewed missions.
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