How to create an earth that uses tiles, so the user can zoom in to see different levels of detail

I am trying to create an Earth that can tile different levels of detailed based on how far a user zooms toward or away from it. I am looking for functionality similar to google earth. As of right now I have an earth that consists of a sphere with a static mesh around it. I am not sure where to go from here.

Any help is appreciated!

Thanks!

I’m looking for this as well! please, can anyone tell how to achieve this feature? Thanks!