Gorro

Gorro was an Ork world of the Telon Reach, serving as capital of a province within the Ork empire of Ullanor during the era of the Great Crusade. The Imperium classified it as a scrapworld: a mobile, artificial planetoid assembled by Ork Mekboyz from salvaged debris and scrap, its mass held together and powered by a plasma reactor at its core. It was cleansed by Imperial forces under the command of the Emperor and Horus; in the fighting, Horus severed the arm of a warboss that had seized the Emperor by the throat. Following the defeat of its Ork population, the reactor at Gorro’s heart failed, and the planetoid broke apart and was destroyed. Gorro no longer exists.