Bio-cubes on the surface of Mandalore
Bio-cubes, which were also referred to as bio-domes, constituted enormous, shielded cube-shaped or dome-shaped cities populated by the New Mandalorians on Mandalore, their homeworld. This occurred after the surface of the planet became an unlivable desert due to centuries of warfare. The planet's [capital](/article/capital], Sundari, existed within a bio-dome.
The initial appearance of a bio-dome was in "The Mandalore Plot," specifically episode twelve of Star Wars: The Clone Wars' second season, a canon animated series.