Yamato Takeru(1994)

Yamato Takeru is a science fiction series set in the 25th century. A spacecraft carrying 300 people departs Earth seeking a new world within the solar system, but a catastrophic accident sends it through a black hole into an alternate universe. The survivors crash-land on the planet Ismo in the Onam System and struggle to build a new civilization. Twelve years later, the colony faces an existential threat: Yomi, a massive comet known as the Death Star, approaches on a collision course with their world. As the only remaining planet in the Onam System, Ismo stands alone against annihilation. The series follows the survivors' desperate fight for survival against impossible odds in a hostile alien environment.