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.但此刻当它张开双臂,就死死的扒住了太阳船的船头,就像是一个扒在火车车头上的逃票者一样,隔着窗户,向着驾驶员露出得意又兴奋的神情。
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