Hi community, this is my approach to a photoreal earth as It was the results in cycles from a corona render guide, I used Nasa’s earth pictures to make the surface’s height, ocean, and clouds, for the atmosphere I was using the principled volume to match a quite similar behavior with some tweaking on the nodes. I hope you like it! 
Some renders were inspired by real photos from Nasa and the ISS views.
Here are the nodes from the atmosphere:
