Moon Phases and More

Cool start!  One significant issue, though, from a science prospective, is that the Moon is tidally locked to the Earth.  This means that its rotational and revolutionary periods are identical so that the same side of the Moon always faces the Earth.  The other scientific issue is that the Moon and Sun are the same angular size in the sky, about 0.5 deg, so in the "Earth to Moon Camera" view during New Moon phase, the cross-section of the Moon and the cross-section of the Sun should be the same.  This is a great start to a lunar phase sim, though.  Nicely done.