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Soyuz 2.1b | Bion-M No. 2

Russian Federal Space Agency (ROSCOSMOS) · Soyuz 2.1b · 31/6, Baikonur Cosmodrome, Republic of Kazakhstan

Russian Federal Space Agency (ROSCOSMOS)'s 334th launch · 5th this year · humanity's 7,036th orbital launch attempt

T− --:--:--August 20, 2025 · 17:13 UTCAdd to calendar
Success

The launch vehicle successfully inserted its payload(s) into the target orbit(s).

Window: Aug 20, 17:13Aug 20, 17:13 UTC

Flight preview

Bion-M No. 2

Bion-M is the next generation of Russian biological research satellites. While retaining the Vostok/Zenit-derived reentry module of the earlier Bion, the propulsion module has been replace by a Yantar type module, which provides maneuvering capabilities and longer mission support. The mission duration has been increased to up to 6 months by using solar cells for energy generation. The weight of scientific equipment has been increased by 100 kilograms.

Biology · Low Earth Orbit (LEO)

Booster

No booster details available.

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Updates

  • Launch success.

    Cosmic_Penguin · 8/20/2025 · source

  • Spacecraft separation.

    Cosmic_Penguin · 8/20/2025 · source

  • Liftoff.

    Cosmic_Penguin · 8/20/2025 · source

  • Official Webcast by Роскосмос ТВ has started

    LL2 · 8/20/2025 · source

  • Tweaked T-0.

    Cosmic_Penguin · 8/19/2025 · source

  • Setting GO.

    Cosmic_Penguin · 8/12/2025 · source

  • NET August 20.

    Cosmic_Penguin · 7/11/2025 · source

  • NET August 25.

    Cosmic_Penguin · 6/10/2025 · source

  • Added launch time.

    Cosmic_Penguin · 5/14/2025 · source

  • NET July 20.

    Cosmic_Penguin · 5/8/2025 · source

Pad — 31/6

Local pad time: Aug 20, 10:13 PM GMT+5

429 launches from this pad · 1,564 from Baikonur Cosmodrome, Republic of Kazakhstan

Map of 31/6Open in maps