In the same way the electrograph of the Moon passes at stated intervals between the Earth and the burning world of the Sun." "Yet surely," I said, "the telescope has enabled us to see the Moon as a solid globe--we have discerned mountains and valleys on its surface; and then it revolves round us regularly--how do you account for these facts ?" "The telescope," returned Heliobas, "is merely an aid to the human eye; and, as I told you before, nothing is so easily deceived as our sense of vision, even when assisted by mechanical appliances.

The telescope, like the stereoscope, simply enables us to see the portrait of the Moon more clearly; but all the same, the Moon, as a world, does not exist.
Her likeness, taken by electricity, may last some thousands of years, and as long as it lasts it must revolve around us, because everything in the universe moves, and moves in a circle.

Besides which, this portrait of the moon being composed of pure electricity, is attracted and forced to follow the Earth by the compelling influence of the Earth's own electric power.

Therefore, till the picture fades, it must attend the Earth like the haunting spectre of a dead joy.

You can understand now why we never see what we imagine to be the OTHER SIDE of the Moon.