The moon is a natural satellite of the sun, not a "blank."

Here's why:

* The moon orbits the Earth, not the sun. The Earth is a natural satellite of the sun.

* Blank is not a scientific term. It implies emptiness or lack of content, which doesn't describe the moon.

* Satellite refers to an object that orbits a larger object in space.

So, the correct statement is: The moon is a natural satellite of the Earth, which in turn is a natural satellite of the sun.