From “For All Mankind s01e10” post-credits scene:
The Sea Dragon, a giant launcher project by Robert Truax for Aerojet A relatively simple rocket, albeit with a reusable first stage (with parachute)
With dimensions of 150 m (490 ft) long and 23 m (75 ft) in diameter, Sea Dragon would have been the largest rocket ever built. As of 2018, among rockets that have been fully conceived but not built, it is by far the largest ever and, in terms of payload into low Earth orbit (LEO), equaled only by the Interplanetary Transport System concept (the predecessor to SpaceX Starship) in the latter’s expendable configuration with both designed for 550 tonnes. [wikipedia]
In the show it was first launched from the South Pacific Ocean on its maiden flight, in 1977. The rocket was used on a mission to resupply and expand Jamestown with components for a plutonium fueled nuclear power-source, in an effort to cut the costs of living, on the moon. [Source: https://for-all-mankind.fandom.com/wiki/Sea_Dragon]
I put a lot of effort into making these posters, any suggestion is welcome.
Redbubble: