Here's why:
* The Moon is a large, rocky body: It doesn't have a source of energy like the Sun, which produces its own light through nuclear fusion.
* Sunlight hits the Moon's surface: When sunlight hits the Moon's surface, it bounces off in all directions.
* We see reflected light: We see the Moon because the reflected sunlight reaches our eyes.
So, the Moon is essentially a giant mirror reflecting sunlight, making it appear to glow in the night sky.