Gagarin spaceport
First spaceport built by humans in low Terran orbit. It's completion kickstarted further exploration and industrialization of space and led to the colonization of Luna and Mars as well as other places.
Purpose / Function
Built to kickstart space exploration and industry by serving as the both destination and refueling and repair port.
Alterations
Addition of the third ring simulation Terran gravity of 1g as well as adding second disc allltogether in later years.