Today, 100 Hours of Astronomy begins, a cornerstone project of the International Year of Astronomy 2009 celebrating the 400th anniversary of Gallileo's original telescopic exploration of the sky.
为庆祝伽利略用望远镜探索天空的四百周年庆，2009国际天文年重要的100小时的天文观测计画在今天启动。
Our 2009, Our International Year of Astronomy!
我们的2009，我们的国际天文年！
It is 400 years since Galileo gazed in wonder at the night sky through a telescope for the first time, and to celebrate the event, 2009 has been declared the International year of Astronomy.
自从伽利略通过望远镜首次惊奇地仰望夜空已经400年了，为了庆祝这一事件，2009年被命名为国际天文学年。
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