The Moon may seem to change shape, however in reality the splendid surface you see and the 'moonlight' that arrives at Earth is daylight reflecting off the lunar surface. As the Moon circles our planet, its fluctuating position implies that the Sun illuminates various locales, making the fantasy that the Moon is changing shape after some time. The internal circle shows what the Moon resembles seen from over its north post, while the external circle shows the stage we see from Earth around then.