Discounting mountains, valleys, and other gross surface features, is there any place on Earth from which the Moon is not visible at all?
Frank X. Guthrie
Just as the Sun is visible for 6 months out of every 12 at any point on the surface of the
Earth, the moon can be seen from any point on Earth's surface at some time. The Moon is
only 'invisible' to Earth in its 'New' phase when its lighted side faces away from
Paul Walorski, B.A., Part-time Physics Instructor
'As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.'