Energia Lunar Expedition

The Energia Lunar Expedition was a project that was proposed by Soviet engineer Valentin Glushko in 1988 which would’ve aimed to create a lunar base using the Energia rocket. The lunar base was to then be eventually used for mining helium-3 from the lunar surface.

Hardware
The Energia expeditions involved at least two sections of hardware, which were placed into a low Earth orbit in separate Energia launches.