 formations that you would see on such a planet. It would be very deep oceans covering the entire planet and a hydrogen-rich atmosphere. And these sorts of planets, if they exist, fall in between the ice giants in the solar system, the Neptune and Uranus, and the rocky planets. It would have a thin hydrogen-rich atmosphere by comparison to what we have in our giant planets in the solar system, but it would still be a hydrogen-rich atmosphere on an ocean world.