中文翻譯:
在太空中，有一個神秘的朋友叫做月亮。你是否知道，月亮有一面永遠對著地球？這是因為月亮自轉的速度和繞著地球轉的速度是一樣的，都是在大約28天內完成一圈。這種情況叫做「潮汐鎖定」，使得我們只能看到月亮的這一面！這一面有很多特別的地方，例如平滑的黑色大片區域，科學家們稱之為「月海」，其實它們是由火山活動形成的。還有高高的山脈，非常適合我們的朋友們觀察。想知道月亮上的大海或大坑穴在哪裡嗎？只需跟著鏈接或在圖片上滑動光標，就能找到你喜歡的地方！這些美麗的圖片是由月球勘測軌道器（Lunar Reconnaissance Orbiter）拍攝的，總共用了1300張圖片，合成了這幅壯觀的月球照片，拍攝時間大約是在2010年的12月。快來一起探索月球的奧秘吧！
原文:
About 1,300 images from the Lunar Reconnaissance Orbiter spacecraft’s wide angle camera were used to compose this spectacular view of a familiar face – the lunar nearside. But why is there a lunar nearside? The Moon rotates on its axis and orbits the Earth at the same rate, about once every 28 days. Tidally locked in this configuration, the synchronous rotation always keeps one side, the nearside, facing Earth. As a result, featured in remarkable detail in the full resolution mosaic, the smooth, dark, lunar maria (actually lava-flooded impact basins), and rugged highlands, are well-known to earthbound skygazers. To find your favorite mare or large crater, just follow this link or slide your cursor over the picture. The LRO images used to construct the mosaic were recorded over a two week period in December 2010.
來源:NASA每日圖片
