Galileo (1564–1642) was an Italian scientist — astronomer, mathematician, and physicist — whose work sits near the start of modern science.

Galileo (1564–1642)伽利略（1564–1642） was an Italian scientist是一位義大利科學家 — astronomer, mathematician, and physicist身兼天文學家、數學家和物理學家 — whose work sits near the start of modern science他的研究工作，正是現代科學開端附近的重要一步

With a telescope he made, he saw mountains and craters on the Moon, and he found four moons going around Jupiter. He watched Venus change shape, like a little moon, which showed it was travelling around the Sun, not around the Earth.

With a telescope he made用他自己做的望遠鏡 he saw mountains and craters on the Moon他看到了月球上的山脈和坑洞 and he found four moons going around Jupiter也發現了四顆繞著木星轉的衛星。 He watched Venus change shape, like a little moon他觀察到金星會像小月亮一樣改變形狀 which showed it was travelling around the Sun, not around the Earth這顯示金星是繞著太陽轉，而不是繞著地球轉

He also studied how things fall: heavier and lighter pieces pick up speed in the same way if air does not get in the way.

He also studied how things fall他也研究物體下墜的方式： heavier and lighter pieces pick up speed in the same way比較重和比較輕的東西，會用同樣的方式加速 if air does not get in the way如果沒有空氣阻擋

The Church of his day put him on trial for teaching that the Earth moves.

The Church of his day當時的教會 put him on trial審判他 for teaching that the Earth moves因為他教導「地球會動」

Later things named in honour of Galileo Galilei include a unit of acceleration called the galileo, and Europe's satellite navigation system, Galileo.

Later things named in honour of Galileo Galilei後來為了紀念伽利略・伽利萊而命名的事物 include a unit of acceleration called the galileo包括一個叫做galileo的加速度單位 and Europe's satellite navigation system, Galileo還有歐洲的衛星導航系統Galileo