ok, I see these were probably LOD2 screenshots. Even still, I've never seen a planet with such high, jagged mountains. Even the Himalaya mountains of Earth look like small hills.
Yes, those look like LOD2 screenshots, keep in mind Earth uses a map for it's terrain while other planets in different solar-systems are procedurally generated. Try going to a real procedurally generated terra planet and finding some mountains, once they load it should look similar to that.