https://sputnikglobe.com/20260917/russias-soyuz-21b-rocket-carries-heavier-payloads-toward-iss-1124750272.html
Russia’s Soyuz-2.1b Rocket Carries Heavier Payloads Toward ISS
Russia’s Soyuz-2.1b Rocket Carries Heavier Payloads Toward ISS
Sputnik International
The Soyuz-2.1b launch vehicle will allow Russia to deliver larger cargo payloads to the International Space Station (ISS) and could later support missions to the planned Russian Orbital Station, space historian Alexander Zheleznyakov told Sputnik.
2026-09-17T08:32+0000
2026-09-17T08:32+0000
2026-09-17T08:32+0000
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alexander zheleznyakov
russia
soyuz-2.1b
international space station (iss)
baikonur cosmodrome
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The rocket launched from Baikonur Cosmodrome carrying the Progress MS-35 cargo spacecraft to the ISS. Unlike the lighter Soyuz-2.1a version usually used for crewed and cargo missions, the Soyuz-2.1b provides additional payload capacity.The current mission is partly a test flight, with an extended three-day approach to the ISS instead of the standard two-day route to allow additional checks of spacecraft systems and flight procedures. According to Zheleznyakov, the increased payload capability makes the Soyuz-2.1b suitable for transporting more supplies and could later support crewed launches.The rocket version has already been used in Russia’s space program, including the 2021 launch of Progress M-UM, which carried the Prichal docking module to the ISS.
https://sputnikglobe.com/20251128/soyuz-ms-28-delivers-new-crew-to-iss-infographic-1123189269.html
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alexander zheleznyakov, russia, soyuz-2.1b, international space station (iss), baikonur cosmodrome
alexander zheleznyakov, russia, soyuz-2.1b, international space station (iss), baikonur cosmodrome
Russia’s Soyuz-2.1b Rocket Carries Heavier Payloads Toward ISS
The Soyuz-2.1b launch vehicle will allow Russia to deliver larger cargo payloads to the International Space Station (ISS) and could later support missions to the planned Russian Orbital Station, space historian Alexander Zheleznyakov told Sputnik.
The rocket launched from Baikonur Cosmodrome carrying the Progress MS-35 cargo spacecraft to the ISS. Unlike the lighter
Soyuz-2.1a version usually used for crewed and cargo missions, the Soyuz-2.1b provides additional payload capacity.
The current mission is partly a test flight, with an extended three-day approach to the ISS instead of the standard two-day route to allow additional checks of spacecraft systems and flight procedures. According to Zheleznyakov, the increased payload capability makes the Soyuz-2.1b suitable for transporting more supplies and could later support crewed launches.
The rocket version has already been used in Russia’s space program, including the 2021 launch of Progress M-UM, which carried the Prichal docking module to the ISS.
28 November 2025, 12:20 GMT
