1 Answer

Every month the moon or la lune as the French call it circles around the earth in a pretty much repetitive path. The lunar month--from the French word--causes the tides and changes in tides. The circle around the earth is not completely round. Sometimes it is a little closer or farther away than other times. Also, the earth shifts on it's axis periodically through the year and this difference causes the moon to be at different lengths from a given point on earth at a given time. Also the earth is revolving around the sun while the moon is revolving around the earth so the moon is at different lengths from the earth at different times during the year. Both the earth's movement and the moon's movement cause the distance to change all the time but it only changes within a certain amount of distance. So far it has stayed within the earth's orbit and only moves so far away or close.