Zarya (Russian: Заря́, lit. 'Dawn'[b]), also known as the Functional Cargo Block or FGB (from the Russian: "Функционально-грузовой блок", lit. 'Funktsionalno-gruzovoy blok' or ФГБ), is the first module of the International Space Station to have been launched.[2] The FGB provided ...
https://en.wikipedia.org/wiki/Zarya
Zarya (Russian: Заря́, lit. 'Dawn'[b]), also known as the Functional Cargo Block or FGB (from the Russian: "Функционально-грузовой блок", lit. 'Funktsionalno-gruzovoy blok' or ФГБ), is the first module of the International Space Station to have been launched.[2] The FGB provided electrical power, storage, propulsion, and guidance to the ISS during the initial stage of assembly. With the launch and assembly in orbit of other modules with more specialized functionality, Zarya is now[when?] primarily used for storage, both inside the pressurized section and in the externally mounted fuel tanks.