R-7.

About R-7

The R-7 rocket family is a series of launch vehicles descended from the Soviet R-7 Semyorka, developed in the 1950s as the world's first intercontinental ballistic missile (ICBM). While the R-7 proved impractical as a weapon, it became a cornerstone of the Soviet and subsequent Russian space programs. Over time, its design was largely standardized into the Soyuz rocket, which continues to operate in its modernized form, the Soyuz-2. More R-7 rockets have been launched than any other family of orbital rockets.