Complex sentence: The faction who believed the hats should be blue followed a sacred writing of Cloister, that they had interpreted as a star chart, and immediately flew into an asteroid it is not known what became of the second spacecraft.
Split into simpler sentences: The faction who believed the hats should be blue followed a sacred writing of Cloister, that they had interpreted as a star chart, and immediately flew into an asteroid. It is not known what became of the second spacecraft.