RFSA Soyuz 2.1b Bion-M No. 2
Soyuz 2.1b
Status
Success
Date
20 AUG 2025
17:13
Launch Provider
Russian Federal Space Agency (ROSCOSMOS)
Launch Pad
31/6
Baikonur Cosmodrome, Republic of Kazakhstan
Mission Overview
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.
Rocket
Soyuz 2.1b
Mission Type
Biology
Orbit
Low Earth Orbit
Stages
3
Livestream
Rocket Details
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 an upgraded engine (RD-0124) with improved performance to the second stage.
Height
46.3 m
Diameter
2.95 m
Launch Mass
312 T
