Earth Orbital Spaceport (EOS), constructed from 2039-2048, replaced the aging International Space Station as humanity's primary port of call for deep-space operations. It had the advantage of being specifically designed for the role, rather than hastily adapted from a scientific outpost like the ISS had been, and thanks to advances in surface-to-orbit technology it was able to be far larger than any station before it.

EOS was one of the crowning achievements of 21st-century space construction. The station had twin counter-rotating habitat rings, far larger than any before them, that spanned over a hundred meters in diameter and rotated to provide one Earth-gravity of centripetal force for inhabitants of the station. Its pair of enormous solar arrays provided ample power to the station, and the depot module toward the station's zenith always held several Luna-made standard reusable booster tanks for resupplying outward-bound vessels. The docking tower at zenith was designed for larger interorbital spacecraft, like haulers and ferries, while the nadir docking tower was designed to accommodate up to 8 surface-to-orbit shuttles at a time. EOS also boasted twin zero-G terrariums, four crew airlocks, four atmosphere-capable emergency escape shuttles, six powerful stationkeeping engines, and a potent long-range communications array to manage the spacelanes in Earth's gravitational sphere.

EOS remained a fixture of low Earth orbit for well over 75 years, until its eventual replacement by the even larger (and far more permanent) Gaia Station in 2125. It was officially decommissioned in 2133, and like its predecessors was towed to rest in a stable Earth-Moon L4 orbit where it remains as a historical monument. Its acronym, EOS, was the name of the Greek goddess of the dawn, and was elegantly symbolic of its place in history: the dawn of permanent human presence in space.

This station is entirely fictional; one of many fictional spacecraft I've created here for my hard science fiction universe, The Diaspora. The future-historical events mentioned in this description have not yet happened (and likely never will), though you can read more about this alternate-history/prospective-future here: https://www.worldanvil.com/w/diaspora-spyglassrealms