The universe of No Man's Sky comprises 255 unique galaxies. In turn, these are comprised of:
3 to 4 billion regions
each of which contain more than 122 and up to roughly 550 star systems
This results in more than 18 quintillion planets available for discovery. All star systems feature from 1-6 planets and moons, and usually a single space station.
Players start in galaxy 1, Euclid, and travel through galaxies in order by reaching the