'Sunrise'[c]), also known as the Functional Cargo Block (Russian: Функционально-грузовой блок), is the inaugural component of the International Space Station (ISS).

Launched on 20 November 1998 atop a Proton-K rocket, the module would serve as the ISS's primary source of power, propulsion, and guidance during its early years.

[4] A descendant of the TKS spacecraft used in the Salyut programme, Zarya was built in Russia but its construction was financed by the United States.

A FGB cargo block was incorporated as an upper stage engine into the Polyus spacecraft, flown (unsuccessfully) on the first Energia launch.

Zarya was launched on 20 November 1998 on a Russian Proton rocket from Baikonur Cosmodrome Site 81 in Kazakhstan to a 400 km (250 mi) high orbit with a designed lifetime of at least 15 years.

Although only designed to fly autonomously for six to eight months, Zarya was required to do so for almost two years due to delays to the Russian Service Module, Zvezda.