Kosmos 557

Kosmos 557 (Russian: Космос 557 meaning Cosmos 557) was the designation given to DOS-3, the third space station in the Salyut program. It was originally intended to be launched as Salyut-3, but due to its failure to achieve orbit on May 11, 1973, three days before the launch of Skylab, it was renamed Kosmos-557.

Kosmos 557

Kosmos 557 (Russian: Космос 557 meaning Cosmos 557) was the designation given to DOS-3, the third space station in the Salyut program. It was originally intended to be launched as Salyut-3, but due to its failure to achieve orbit on May 11, 1973, three days before the launch of Skylab, it was renamed Kosmos-557.