Cosmogonist :: Cosmogonist (n.) One who treats of the origin of the universe; one versed in cosmogony.
Cosmogony :: Cosmogony (n.) The creation of the world or universe; a theory or account of such creation; as, the poetical cosmogony of Hesoid; the cosmogonies of Thales, Anaxagoras, and Plato..
Cosmographer :: Cosmographer (n.) One who describes the world or universe, including the heavens and the earth..
Cosmography :: Cosmography (n.) A description of the world or of the universe; or the science which teaches the constitution of the whole system of worlds, or the figure, disposition, and relation of all its parts..