Universe 6 (第6宇宙, dai 6 uchū) is the sixth of the twelve universes in the Dragon Ball series, it includes planets, stars, a countless amount of galaxies. Universe 6 is linked with Universe 7, creating a twin universe.
Places in Universe 6
Main article: Places in the Sixth Universe It is known that Universe 6 is a twin universe, almost identical to the Universe 7. Any planets that have existed in the Seventh Universe will also likely have existed in the sixth. The majority of planets are unknown, but it is known that Universe 6 has an Earth but it had been ravaged by war with the Earthlings on that Earth which rendered the Earthlings extinct, until Beerus revived the planet and all of its inhabitants with the Super Dragon Balls. Planet Sadla, which was destroyed in the Universe 7, still exists in this universe.