Besides its other qualities, a Temple reveals the galactic coordinates of all planets with Temples. Therefore, any interstellar civilization can contact all others, excluding Earth. Earth does not have a Temple, and its coordinates are unknown. That is why Earth is often contemptuously called "the planet which doesn't exist." Most believe that the Seeders, by not leaving a Temple on the planet, displayed their contempt for Earth. One religious sect even believes that the Seeders consider Earth to be their enemy; as such, the sect believes that Earth must be destroyed. Fortunately, the same lack of coordinates prevents the planet's destruction. However, there have been rumors of people reaching Earth by making a blind jump.