Reference: How to Make a Realistic Earth in Blender in 20 mins
Reference: How to Make a Realistic Moon in Blender (Beginner Tutorial)
YouTube => https://youtu.be/WKvi7je3oDE
I made use of geometry nodes to scatter the rocks on the moon ground.
Reference: How to Scatter Objects WITH GEOMETRY NODES in 2023! (Blender Tutorial)
Starmap source: https://svs.gsfc.nasa.gov/3895
I tested Stable Diffusioin Blender Add-on.
https://blendermarket.com/products/ai-render
The result was amazing!