Largest rocket ever built?

Starship stacked on Super Heavy exceeds 120 m, about ten metres taller than the Saturn V and with roughly twice its liftoff thrust. Its 33 Raptor engines generate about 74 MN, against 34 MN for the Saturn V's five F-1s and 45 MN for the thirty engines of the Soviet N1. On launch mass the gap is similar: close to 5,000 tonnes versus about 2,900 for the Saturn V. The only comparison Starship has not yet closed is delivered payload, since the Saturn V's 118 tonnes to low Earth orbit remains the heaviest operational record, while Starship has so far flown test payloads and Starlink simulators (as of early 2026).

The race for size began in the 1960s. The Saturn V flew 13 times from 1967 to 1973 without losing a payload, and its Moon-rocket rival, the N1, failed on all four attempts between 1969 and 1972, the second of them destroying its launch pad. After Apollo, the Space Shuttle stack and the Soviet Energia, which flew twice in 1987–1988 and carried the Buran orbiter, were the largest vehicles of their era. NASA's Space Launch System, first flown in 2022 with about 39 MN of thrust, briefly held the title of most powerful operational rocket until Starship's first full-duration flights.

It helps to picture the scale. Starship's booster alone, at about 71 m, is as tall as a complete Falcon 9. Standing on the pad, the full stack is higher than a 35-storey building and longer than a Boeing 747-8 and an Airbus A320 placed end to end. Each Raptor engine produces more thrust than the entire first stage of some small launchers, and the vehicle's tanks hold more than 4,500 tonnes of liquid methane and oxygen at cryogenic temperatures.