Fifth Giant
發佈日期:
Fifth Giant is a hypothetical icy giant planet that may have existed between the orbits of Saturn and Uranus. Therefore, at a time of unstable orbits of the giant planets, a possible encounter with Jupiter could have ejected the Fifth Giant out of the Solar System.
請在此 翻譯 協助翻譯本頁。
如何安裝附加元件?請在此 查閱 了解。