The 12th planet

There is supposed to be another planet in our Solar system with an orbital period of 5000 years and a civilisation much more evolved than ours. They did visit us multiple times during the past. Whether Zecharia Sitchin and his Sumerian tablets translations are correct or not, I found this theory beautiful and made a photomanipulation of what this planet might look like as a birthday present for my dad. You can even see the Earth on the horizon... that's because they're coming back, how exciting.