Here's my planet creation tutorial. I decided to share my technique of creating planets since I keep getting asked how I make mine. I think this method is a little easier and simpler than some other. The reason I didn't give a lot of information in the texture creation part is because there are a lot of tutorials out there that explain it, so I didn't find a reason to put myself through the effort of writing it in-depth.

I hope this tutorial helps you out. I tried making this easy to understand. You don't have to strictly follow these steps, you can experiment doing other things aswell. This is just a basic planet creation tutorial. I think everyone needs to develop their own ways of creating advanced planets, because otherwise everyone's planets will look the same.

Anyways, I hope you find this useful and answers some of your questions on how to create planets in Photoshop.