* Sunlight: The Moon reflects sunlight, which is why we see it in the sky. The portion of the Moon facing the Sun is illuminated, creating the familiar phases of the Moon we see from Earth.
* Darkness: The side of the Moon facing away from the Sun is in darkness. This is known as the "dark side of the Moon," but it's not always dark because it does get sunlight when it's facing the Sun.
So, while the Moon doesn't produce its own light, it experiences periods of both light and darkness depending on its position relative to the Sun.