K. A. Applegate's 2001–2003 book series, Remnants, details the end of the world by asteroid collision. The first book, "The Mayflower Project" (2001), describes Earth in a sort of hysteria as 80 people are chosen by NASA to board a spacecraft that will go to an unknown destination away from the destroyed Earth. The later books deal with the few survivors waking up from a 500-year hibernation and succumbing to both strange mutations and the will of a strange alien computer/spaceship that they land on. Eventually they return to Earth to find a couple colonies of survivors struggling on a harsh planet completely different from the Earth the Remnants knew.