There are many artist conceptions of alien planets on the internet. I’ve been interested in creating my own since they first inspired me to get into the field of exoplanet research. I have been teaching myself how to use Blender, an open source 3D modeling software, for creating such worlds. With surface imagery courtesy of NASA, the first project is to recreate the Earth.
Once you have the basics down you are able to create any surface you’d like.
I have really enjoyed learning this tool and have several more projects that I will be sharing that use Blender, Photoshop, Mathematica, and Terragen.