Akademik Sergei Korolev

The Akademik Sergei Korolev (Академик Сергей Королев) was a space control-monitoring ship constructed in 1970 to support the Soviet space program. Named after Sergei Korolev, the head Soviet rocket engineer and designer during the Space Race between the United States and the Soviet Union in the 1950s and 1960s, the ship also conducted upper atmosphere and outer space research.

In Soviet times, the Akademik Sergei Korolev was a large communications ship which was part of a fleet of communications ships. These ships greatly extended the tracking range when the orbits of cosmonauts and unmanned missions were not within range of Soviet land-based tracking stations. The ship mainly operated in the Atlantic Ocean monitoring spacecraft trajectory, telemetry data, and guaranteed a communications link with the cosmonauts.

The ship had about 1200 accommodations, including 79 laboratories, in which 188 scientific workers performed their duties.

In 1975, the ship was a part of the Soviet-American Apollo-Soyuz joint test program.