The moon doesn't have its own light source; it's a giant rock in space. The rays that strike the moon are actually sunlight, which is reflected off the moon's surface and back to our eyes, making it appear bright.

Here's a breakdown:

* The Sun: The sun is a giant ball of burning gas that emits light and heat.

* The Sun's Rays: These rays travel through space as electromagnetic radiation.

* The Moon: The moon has no light of its own, but its surface reflects the sunlight that strikes it.

* Reflection: When sunlight hits the moon's surface, some of it is absorbed, but some is reflected back into space.

* Our Eyes: We see the reflected sunlight from the moon, making it appear bright.

So, the "rays" that strike the moon are actually sunlight, and the moon's brightness comes from reflecting that light.