Bion-M No. 2

Name: Bion-M No. 2
Start: 2025-08-20T17:13:10.000Z
End: 2025-08-20T17:13:10.000Z
Location: 31/6

Soyuz 2.1b, Russian Federal Space Agency (ROSCOSMOS)

31/6, Baikonur Cosmodrome, Republic of Kazakhstan

Launch time

T-0

Wed 20 Aug, 19:13:10 CEST

17:13:10 UTC

Second precision Launch successful

The rocket put its payload into the planned orbit.

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The source gives second precision. Launch plans can change.

Launch record updated by LL2 Tue 26 Aug 2025, 13:54 CEST

Feed checked 11 Oct, 03:42 CEST

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Mission

Bion-M No. 2 on Soyuz 2.1b. Wed 20 Aug 2025, 17:13:10 UTC. Reported outcome: Success. Launch site: 31/6. Source: Launch Library 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.

Mission type: Biology
Orbit: Low Earth Orbit

Soyuz 2.1b on the pad — Credit: Roscosmos · Roscosmos terms (non-commercial)

Launch timeline

No timeline has been provided by the source.

Slip history

Changes recorded by Space Right Now

No changes since we started tracking on Sat 10 Oct 2026, 11:16 UTC.

Source updates from Launch Library 2 (17)

Announcements supplied by LL2 may predate our tracking. They are separate from changes observed by Space Right Now.

Wed 20 Aug 2025, 23:31 UTCLL2 update
Launch success.
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Wed 20 Aug 2025, 17:26 UTCLL2 update
Spacecraft separation.
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Wed 20 Aug 2025, 17:13 UTCLL2 update
Liftoff.
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Wed 20 Aug 2025, 16:11 UTCLL2 update
Official Webcast by Роскосмос ТВ has started
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Tue 19 Aug 2025, 17:53 UTCLL2 update
Tweaked T-0.
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Tue 12 Aug 2025, 02:04 UTCLL2 update
Setting GO.
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Fri 11 Jul 2025, 13:17 UTCLL2 update
NET August 20.
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Tue 10 Jun 2025, 12:07 UTCLL2 update
NET August 25.
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Wed 14 May 2025, 17:02 UTCLL2 update
Added launch time.
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Thu 8 May 2025, 08:21 UTCLL2 update
NET July 20.
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Mon 3 Feb 2025, 18:30 UTCLL2 update
NET July.
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Thu 26 Dec 2024, 17:55 UTCLL2 update
NET March 25.
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Wed 2 Oct 2024, 16:37 UTCLL2 update
NET March 2025.
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Sat 24 Aug 2024, 12:36 UTCLL2 update
NET 2025.
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Sun 30 Jun 2024, 19:15 UTCLL2 update
NET TBD 2024.
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Mon 8 Apr 2024, 13:18 UTCLL2 update
NET September 1st.
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Thu 2 Nov 2023, 13:35 UTCLL2 update
Added launch.
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Launch pad

31/6

Baikonur Cosmodrome, Republic of Kazakhstan (KZ)

Coordinates: 45.996034, 63.564003

View launch pad on a map