* Planets are defined as celestial bodies that orbit a star, have enough mass to be rounded by their own gravity, and have cleared their neighborhood around their orbit.

* The Moon is a natural satellite, orbiting the Earth.

Even the smallest planet in our solar system, Mercury, is significantly larger than the Moon.

Here's a comparison of sizes:

* Mercury: Diameter of 4,880 km

* Moon: Diameter of 3,474 km

Therefore, all planets in our solar system, and in other solar systems as well, are much larger than our Moon.