Time-front world

Time-front worlds were those caught in the middle of the battles fought in the early days of the War in Heaven, whose history was contested, fluctuating and ambiguous. They included Dronid, Simia KK98, and Lethe. The Great Houses usually engaged the Enemy on these worlds following a "shooting star" event.

Some time-front worlds, such as the sites of the Thousand-Year Battles, became so hopelessly confused that they became known as scarred worlds. (PROSE: The Book of the War)