On Earth, only an Earthling sect, the Lunatics, remember the "Age of Travel" and they maintain the Selenite teachings. The sect contacted Michel Ardan before his departure and gave him a small lunar ideogram dictionary to help him decipher the lunar inscriptions.

On the Moon, the Selenites have long abandoned the temple dedicated to Earth. Furthermore, their trips to the Moon's surface became increasingly rare as this is where they banish the dregs of their society: the criminals and psychotics.