Soyuz 2.1b — mission imagery
Back to launches
Success

Bion-M No. 2

Soyuz 2.1bRussian Federal Space Agency (ROSCOSMOS)31/6
Wednesday, August 20, 2025 · 05:13 PM UTCAdd to Calendar

This mission is complete.

Vehicle

Soyuz 2.1b

Profile →

Soyuz-2 is the 21st-century version of the Russian Soyuz rocket. In its basic form, it is a three-stage carrier rocket for placing payloads into low Earth orbit. The 2.1b version adds...

Height46.3 m
LEO Payload8,200 kg
Launches347
Successes330

Provider

Russian Federal Space Agency (ROSCOSMOS)

Profile →

RUS • Founded 1992

The Roscosmos State Corporation for Space Activities, commonly known as Roscosmos, is the governmental body responsible for the space science program of the Russian Federation and general aerospace research. So...

Mission Brief

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.

PayloadBion-M No. 2
OrbitLow Earth Orbit
CustomerRussian Federal Space Agency (ROSCOSMOS)
Stages3
Pad31/6, Baikonur Cosmodrome, Republic of Kazakhstan

Mission Timeline

14 / 14100%
Site lock

Launch Site

31/6, Baikonur Cosmodrome, Republic of Kazakhstan

LAUNCH SITE
45.996°N, 63.564°E

Schedule History

No delays or schedule changes recorded.