Data-Spheres of Planetary Urbanization is the UTL’s ongoing attempt to map the urbanization of the planet through a series of experimental visualizations and animated cartographies that translate major global datasets into four interlocking metabolic domains: concentration, circulation, production, and waste. First presented as a 9-minute video installation at the 17th Venice Biennale of Architecture in 2021, the project initially visualized 12 datasets; it has since been expanded to 18 layers and continually absorbs new indicators (for example, carbon-waste composites) as the UTL team refines both method and theory. Each sphere extrudes, carves, or indents a blank globe to illuminate how capitalist urbanization extends its influence far beyond city limits, revealing cities as “entropic black holes” that draw in planetary resources and expel toxified detritus. By fusing critical urban theory with experimental data visualization, Data-Spheres operates as an evolving research platform: it foregrounds the operational landscapes that sustain metropolitan life, challenges inherited city-centric cartographies, and invites scholars, designers, and citizens to imagine alternative urban futures at a planetary scale.