Launch Success
Liftoff Time (GMT)
17:13:10
Wednesday August 20, 2025
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Official Livestream
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First flight of a derivative of the Vostok spacecraft since 2013.
Bion-M is an uncrewed Russian spacecraft, which is capable of returning to Earth with biological experiments. Bion-M is the next generation of Russian biological research satellites, based on the Vostok spacecraft. While retaining the Vostok spacecraft/Zenit reconnaissance satellite-derived reentry module of the earlier Bion series, the propulsion module has been replaced by one derived from Yantar reconnaissance satellites, providing maneuvering capabilities and longer mission support. Maximum mission duration has been increased to up to 6 months by using solar cells for energy generation. The mass of scientific equipment that can be carried has also been increased by 100 kilograms.
Low Earth Orbit
1 Payload
6,400 kilograms
Manufacturer
RKK EnergiyaPrice
$20.00 million
Rocket
Height: 44.08m
Payload to Orbit
LEO: 8,020 kg
GTO: 0 kg
Liftoff Thrust
4,550 Kilonewtons
Fairing
Diameter: 4.11m
Height: 8.36m
Stages
3
Strap-ons
4
Launching
Northeast
97th
Mission
4th
Mission of 2025
186th
Orbital launch attempt