Soon after, Galileo Galilei in Italy turned his own telescope to the sky for the first time and saw incredible sights, like craters on the moon and four bodies orbiting Jupiter.
A remote world that became a focal point in galactic history, Yavin 4 is a jungle moonorbiting the gas giant of Yavin.
雅文4号卫星是环绕气态巨行星雅文运行的丛林卫星。这个偏远的世界是银河历史上的焦点。
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Newton proved his idea by measuring how much gravity force would be needed to keep the moonorbiting the Earth. Then he measured the mass of the Earth and the moon, and the distance between them.