Anyone taking the trouble to look 1UP on a clear moonlit night cannot fail to be moved by the sight of our sister planet hanging up there in the sky like a silver ball casting 2GHOST shadows on the Earth below. Few 3ANIMATE objects could have had such an influence over religion and the arts. And never is the Moon’s visual impact more 4IMPRESS than when it is full and just above the distant horizon. Under these conditions, the apparent 5PROXIMATE of the lunar disc to familiar terrestrial objects makes the Moon appear to be very much larger and closer than normal. But the fact that our 6AID eyes still cannot discern more than just a few dark blotches on its surface demonstrates that this effect must indeed be just an 7OPTICS illusion. The light from the Moon cannot really become 8INTENSE as it passes at a grazing angle through our atmosphere.