Ionosfera-M 3 & 4 launch

A Soyuz-2.1b launch vehicle launched Ionosfera-M No. 3 & No. 4 (Ионосфера-М № 3 и № 4), as well as 18 small satellites, from the Vostochny Cosmodrome, Russia, on 25 July 2025, at 05:54 UTC (14:54 local time). Roscosmos Ionosfera-M is a four satellites constellation that will observe the Earth’s ionosphere. Credit: Roscosmos Soyuz-2.1b launches Ionosfera-M 3 & 4 Пуск Союз-2.1б с Ионосфера-М 3 и 4