中文翻譯:
在遙遠的月球，有一面我們從來不會看到的地方，叫做惡面。這裡的表面顯得又粗糙又崎嶇，和我們常見的平滑月海非常不同。這是因為在這個面上，月球的外殼比較厚，讓裡面的熔岩不容易流出來，形成平滑的表面。這張美麗的圖片來自探測器Lunar Reconnaissance Orbiter，它拍攝了成千上萬張照片，為我們展現了這個神秘的惡面。隨著科技的發展，我們雖然無法親眼看到，但卻可以通過這些圖片了解它，真是太神奇了！
原文:
Tidally locked in synchronous rotation, the Moon always presents its familiar nearside to denizens of planet Earth. From lunar orbit, the Moon’s farside can become familiar, though. In fact this sharp picture, a mosaic from the Lunar Reconnaissance Orbiter’s wide angle camera, is centered on the lunar farside. Part of a global mosaic of over 15,000 images acquired between November 2009 and February 2011, the highest resolution version shows features at a scale of 100 meters per pixel. Surprisingly, the rough and battered surface of the farside looks very different from the nearside covered with smooth dark lunar maria. A likely explanation is that the farside crust is thicker, making it harder for molten material from the interior to flow to the surface and form dark, smooth maria.
來源:NASA每日圖片
