Moon is non luminous body it doesn't have its own light ,it only reflect sun light that's why we see it in dark .

Why do we see the moon in the dark?

The moon is a non-luminous celestial body, which means it does not produce its own light. However, we are still able to see the moon even in the dark because of a phenomenon known as "reflection of light."

Reflection of Light:
When light falls on an object, it can bounce off the surface of the object and travel towards our eyes. This is called reflection of light. The moon reflects the light of the sun, which is why it appears bright in the night sky.

The Sun's Light:
The sun is a luminous body that emits light in all directions. This light travels through space and reaches the moon. When sunlight strikes the moon's surface, it gets reflected back towards the Earth.

Surface of the Moon:
The moon's surface is covered with a layer of dust, rocks, and craters. These materials are not perfectly smooth, and they scatter the incoming light in different directions. As a result, the moon reflects the light in various directions, including towards the Earth.

Earth's Atmosphere:
The Earth's atmosphere plays a vital role in enabling us to see the moon. When the moon's reflected light enters the Earth's atmosphere, it undergoes various optical phenomena such as scattering and refraction. These phenomena help to distribute the light and make it visible to us.

Visibility of the Moon:
The moon appears most visible during the night because there is less ambient light to compete with its brightness. In contrast, during the day, the sunlight is much brighter, making it difficult to see the moon clearly. However, the moon can still be visible in the daytime, especially when it is near the horizon.

Conclusion:
Although the moon itself doesn't emit light, it appears bright in the night sky because it reflects the sunlight towards the Earth. The reflection of light, along with the scattering and refraction in the Earth's atmosphere, allows us to see the moon even in the dark.