This planetary evacuation ship was "the last tool constructed by mankind on earth" (though the Boomerang Star was built in geostationary orbit). Built to escape the upcoming planetary ecological disaster; it is stated that its builders were in such a hurry that "not everyone" made it aboard. Just as the ship's name implies that it might return someday (boomerangs return to the thrower if thrown correctly), mankind returns to Earth at the very end of the series.
|AutoReiv * Cogito Virus * Womb Room * Amrita cells * FP Ray * Methane hydrate|
|Pulse of the Awakening * Project Boomerang * Proxy Project * Proxy Pendant|
|Raison d'être * Regent * The Commune * NaKaMa * AutoReiv Disposal Facility|