由于金星离地球更近，所以它的视差角会更大。哈雷计算出，利用金星可以测量出太阳与地球之间的距离，误差为五百分之一。
As Venus was closer to the Earth, its parallax angle would be larger, and Halley worked out that by using Venus it would be possible to measure the Suns distance to 1 part in 500.
由于地球与太阳的相对位置，地球一直是生命的摇篮。
Earth has been a cradle for life because of its position relative to the Sun.
光线也在是失去活力，首先，由于地球绕着太阳的轨道，由于地球倾斜的轴线与我们所处的北半球相结合，最直接从太阳所接收到的光线，就愈为遥远。
The light is dying, for one thing, as Earth’s orbit around the sun and tilt on its axis combine to carry us in this hemisphere further away from receiving the sun’s rays most directly.
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