Demo at http://ljack.github.io/orbital-challenge/
Wanted to learn Three.js and saw https://reaktor.com/orbital-challenge/. Spent some nights hacking and got the puzzle solved.
There're still some issues left. Feel free to look -around (the globe :-)
Started with static HTML, <script> tags, rotating sphere. Ended up using yeoman, webpack and ES6 modules, textured earth, BufferGeometry and shaders. Caused some issues, like using very old version of Three.js without realizing it.
It all starts from app.js.