The Moon's color is not fixed and can vary depending on the night and time. According to a collection of images taken by an astrophotographer over 10 years from different locations across Italy, the Moon can appear in a range of colors, including brown-tinged gray, red, yellow, blue, and even purple. The color of the Moon is influenced by the Earth's atmosphere, which scatters some of the blue light and allows the longer wavelengths of light, such as red and yellow, to reach our eyes. A red or yellow-colored Moon is often seen near the horizon, where the atmosphere is more dense and scatters more blue light. A blue-colored Moon is less common and may indicate the presence of larger dust particles in the atmosphere. The cause of the purple Moon is still unclear, but it may be the result of a combination of effects. The Moon can also appear red during a total lunar eclipse, as seen in the image of the 2018 July eclipse, where the Moon appeared faintly red due to light being refracted through the Earth's atmosphere. If you've ever noticed an unusually colorful Moon, it's likely due to the unique conditions of the night sky.