Another impossible world found. Go figure. It was impossible because their closely held nebular hypothesis theory is completely bogus. A star cools and dies becoming the planet, thus how big and rocky it will become is dependent on how big it was when it was a much younger star. In other words, the size of the rocky world is dependent on how much gas deposited into the core to create the rocks to begin with. Lots of gas = big rocky world. If the gas gets stripped away by a younger hotter star then not a whole lot will settle in its interior, and the rocky world will be smaller.