This model comes in .blend, it was made with cycles, so if you'd like to export it from blender to any other program, you will have to manually add the textures that are provided
All textures are from NASA (they're free).
This Earth consists on 3 spheres, one for the land, another for the clouds and the last one for the atmosphere; so that its easy to rotate them independently one from another.
You can activate the cloud texture if you want or you can get a clear Earth
Comes with all of the textures (see below):
-Land (8192x4096) -Bump (height) (21600x10800) -Clouds (4096x2048) and (8192x4096) -Ocean_mask (10800x5400)