《八大行星》是属于综艺综合类型,演员主要是内详,主要剧情/介绍/评论 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.