伽利略最伟大的成就就是在1609年，他第一个使用新发明的望远镜观测天体，证明了行星是围绕太阳旋转而不是围绕地球旋转。

Galileo's greatest glory was that in 1609 he was the first person to turn the newly-invented telescope on the heavens to prove that the planets revolve around the sun rather than around the earth.

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夜复一夜，伽利略通过望远镜观察天空，并记录下了他看到的一切。把观测记录汇集成书出版，名字叫《星际使者》。

Night after night, he gazed through his telescope and wrote down everything he ovserved. Then he published his observations in a book which he called The Starry Mmessenger.

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伽利略在意大利用望远镜观测天空的时候，疑惑于为什么他的生活感受不到它因有的充实。

Somewhere in old Italy, Galileo is searching the skies with his telescope, wondering why his life doesn't feel as full as it should.

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