The reason the moon appears to change color is due to the reflection of visible light from the sun. Since the moon has no light of its own, it relies on reflected light from the sun to create moonlight and change color. The reflection of light from the sun causes the moon to appear as if it is changing color because as the sun's light rays travel through the earth's atmosphere, the moon captures the sun's light and reflects it back to the earth. As the moon reflects the sun's light rays back to the earth, these light rays travel through the earth's atmosphere in the form of different wavelengths which then produce different colors of visible light. For example, when the moon is low in the sky and close to the Earth's horizon, light from the sun has to pass through more of the Earth's atmosphere than when the moon is high in the sky or positioned directly overhead. When this happens, air molecules filter out short wavelengths of visible light such as green, blue and violet and scatter them into Earth's atmosphere. When the moon is high in the sky...