moon

According to NASA, how many days does it take for the moon to orbit the earth?27.3 Where does the moon get its light from?THE SUN What causes us to see different parts of the lighted moon?THE EARTH REVOLVING around the sun How many phases of the moon are there?8 What are each of the phases called?waning crecent What does "waxing" mean? What does "waning" mean?