Soyuz (Rocket)

The Soyuz rocket is a direct descendant of the R-7, designed by Sergei Korolev as the Soviet Union''s first intercontinental ballistic missile. The R-7 launched Sputnik in 1957 and Yuri Gagarin in 1961, and its basic design -- a central core surrounded by four tapered boosters -- has been in continuous use for over sixty years.

The Soyuz variant emerged in the mid-1960s as a dedicated space launch vehicle, optimized for carrying the Soyuz crewed spacecraft to orbit. Over the decades, the rocket was progressively upgraded while maintaining its fundamental architecture. The current Soyuz-2 version uses digital flight computers and improved engines, but a pilot from the 1960s would still recognize the vehicle instantly.

After the Space Shuttle''s retirement in 2011, Soyuz became the sole means of transporting crew to the International Space Station, a role it held until SpaceX''s Crew Dragon began flying in 2020. During that period, NASA paid Roscosmos approximately $80 million per seat to fly astronauts on Soyuz -- a testament to both the vehicle''s reliability and the lack of alternatives.

With over 1,900 launches across the entire R-7/Soyuz family, no other rocket design comes close in total missions flown. The vehicle''s longevity is a testament to the soundness of Korolev''s original design and the Russian engineering philosophy of incremental improvement over radical innovation.