Juniper Fields Arcology

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=Juniper Fields=
===Otherwise known as 'The Star of the Sol System', 'Juno's Envy', and 'Junever Fields'===
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=Background=
The Juniper Fields Arcology Project was a Corporate-sponsored deep-space construction project that aimed to establish a 'Self-contained Megopolis' within the stable Lagrange point preceding Jupiter's orbit. It would feature onboard 'Ecoarchitectural Synergy', a comprehensive hydroponics and aquaponics suite, fully self-contained life support system, onboard Fusion reactor and Fusion Nucleosynthesis Capabilities, and would feature 'luxurious Jovian views', while a 'thriving and expansive export industry' sought to harvest the Trojan asteroids located within the same space.
In reality, the project was rampant with cost overruns, setbacks, and corruption scandals. NEVEC Corp, AMG Transport Dynamics, and even Misriah Armoury all had stakes within the project, and much of the liquidity for construction costs came from the triumvirate. The construction crews were beset by lacklustre safeties, the temporary-habitation station for the construction crew was woefully inadequate for long-term habitation, and the import of goods and raw materials were either consistently late, or arrived too quickly and in shipments that were too large to store or make use of.
The plans failed to account for the vast interplanetary distances at play, and so Jupiter could not even be seen from the construction site, and many of the 'Trojan Asteroids' were vastly smaller than even the most pessimistic of estimates, and were instead mis-labelled due to albedo levels and other factors.
The technology for such an expansive Fusion power plant and Fusion Nucleosynthesis did not exist within the civilian corporate market, and the UNSC were not willing to share their own limited successes with the technology due to government and military proprietary measures and legislature. 
The planned Hydroponics and Aquaponics suites would also be woefully inadequate for a population the size of which was planned, and the blueprints were found to contain inconsistencies between drafts that waylaid construction efforts of even the most basic of frameworks by years.
It began construction in 2391, and was stated for completion in 2475. As of 2552, it is still under active construction, with no ETA given by the parent corporations as to when a finished Arcology can be expected.
Population census of the station shows some few thousand inhabitants, in a rickety half-built sphere-like construction, in stacked pods with dim UV lamps, and a constant pressure from foremen to continue construction efforts. A far cry from the 'City of Millions' that was promised.
These factors lead to it receiving the dismal, demoralising, and subsequently-banned moniker of 'Junever Fields'.
=Design=
The Arcology was designed to be a 'Bernal Sphere' type construction. The conception of which could be traced back to the 'Grandfather of NEVEC', an ambitious CEO whose sights were set firmly on the entirety of Jupiter. His plan, while ambitious, was limited by the technology of his era, and so it never came to pass. This plan would see Jupiter's upper atmosphere be settled by 'floating Arcologies', that would 'drink deep' of the Gas Giant's abundant Hydrogen reserves, fusing them in massive 'Candle'-like constructions through brute-force containment, thus refining the hydrogen into reactor runoff that could be fused into other elements.
This was decried as a fanciful idea, an impossibility, however the theory behind 'Fusion Synthesis' eventually lead to experiments by the UEG and other special interest groups with using reactors and reactor fuel to create trace amounts of valuable materials. 
Having largely shelved, or outright abandoning, his 'Atmospheric Arcology' idea, the CEO of NEVEC Corp eventually came to redefine his vision as a 'beautifully vibrant jewel among the stars'. His 'Wondersphere' City would be constructed around a central pylon, kilometres in length. Around this would be based a spinning habitat of unprecedented size, the gentle curve and spin would generate gravity, and the interior pylon would remain in Zero G for ease of transport, ease of import and export, and to utilise the Zero-G space as a means to cultivate crops, house meat labs, grow fish in symbiotic 'closed loop' aquaponics, and feed the populous.
His vision of the sphere was a vibrant, green one, with dense urban sprawls and walkable communes subsisting on the interior of the sphere, while maintenance tunnels and auxiliary habitation were mounted externally, threading through the superstructure.
A torus-like ring of 'artificial sunlight' would provide daylight, much of the heat, and 'essential vitamin D' to the colonists, while a 'rotating metal sheathe' would simulate a circadian cycle.
This ambitious project was decried as equally fanciful, though the CEO was determined to see it realised.
What followed was one of the most disastrous financial scandals of the twnety fourth and twenty fifth centuries.