简介：The first episode traces the development of the four rocky planets in our solar system : Mercury, Venus, Earth and Mars. They were born at the same time from the same material, yet have gone entirely different paths. What forces are at work behind it? Why has Earth thrived whilst the others have faded away? Advanced space missions reveal the moments when the fate of these worlds turned.小小影视为您提供《八大行星》免费在线观看，及播出时间。喜欢的话，不要忘记分享给好友哦
