Hi there! So I have two answers for you, feel free to use both or one of them :)
<em>#1</em> The moon only seems bright in the night sky because it is so close to the earth and because the trees, houses, and fields around you are so dark at night. In fact, the moon is one of the least reflective objects in the solar system.
<em>#2 </em> the moon would also be just another dull orb if not for the sun's rays? The moon shines because its surface reflects light from the sun. And despite the fact that it sometimes seems to shine very brightly, the moon reflects only between 3 and 12 percent of the sunlight that hits it.
I hope this helps! Please inform me if my answer didn't help you or if it was incorrect. Thank you so much for saying thanks if you did, and have a great rest of your day or night love <3