Actually the scale of that illustration is wrong.  Using the Sun as a scale reference, then the Earth would be too small to see and its orbit would extend about three feet past the edge of your screen.  And the tilt of the Earth’s axis is off too, so it is purely for explanatory purposes.

Aristotle thought that the heavenly bodies must be perfect spheres and this was later incorporated into medaeval church theology.  It fit well with the notion that the Earth was both the center of the universe and that the Earth itself was a corrupt place.  If the Moon had mountains and valleys, then it was like the Earth and so might other heavenly bodies be like the Earth – implications too horrible to think about thus Galileo’s persecution.  250 years later the Church was up to its neck in Darwin and got nostalgic for the good old days of persecuting Galileo.

I’ll need luck!  Her cooking is my downfall (don’t stop, honey) Unfortunately I have never been able to jog – my shins just rebel.  There is a ski trainer machine I can use at the gym, though, and I lift weights too.

Why is it such a surprise that the moon is not smooth, spherical or void of mountains and valleys? 

And WHY does the full moon inevitably bring bad luck to my life?  It is too consistant an event to ignore.  I want to hide under the bed.

Good luck in jogging off your wife’s good cooking, apple crisp, indeed!