"In "Credo," an essay published in 1991, Clarke lays out a belief system by distinguishing between two views of God: Alpha, who "rewards good and evil in some vaguely described afterlife," and Omega, "Creator of Everything … a much more interesting character and not so easily dismissed." Clarke writes, "No intelligent person can contemplate the night sky without a sense of awe. The mind-boggling vista of exploding supernovae and hurtling galaxies does seem to require a certain amount of explaining.""