中文翻譯:
在遙遠的火星上，有一個特別的地方叫做Happy Face Crater（快樂臉坑）。這個坑的形狀和內部的標記讓它看起來就像一個笑著的臉，甚至還在眨眼！早在1970年代，科學家們就用太空船拍到了這個神奇的坑，並發現了它的獨特形狀。這些標記其實是在很多年前，一顆像城市那麼大的小行星撞擊火星表面時形成的。所有的岩石行星和衛星上都有這樣的撞擊坑，不過在地球的月球和水星上最多。雖然地球和金星的表面也有不少這樣的坑，但由於天氣和侵蝕，這些坑不太容易看見。火星的快樂臉坑提醒我們，宇宙中的每一個地方都有它自己的故事和奇妙之處！
原文:
Mars has put on a happy face. The Martian crater Galle is famous because it has internal markings that make it look like a face that is both smiling and winking. These markings were originally discovered in the 1970s in pictures taken by the Viking Orbiter. The Mars Global Surveyor (MGS) spacecraft that orbited Mars from 1996 to 2006 captured the featured picture. Happy Face Crater and its iconic features were formed by chance billions of years ago when a city-sized asteroid slammed into the Martian surface. All rocky planets and moons in our Solar System show impact craters, with the highest number of craters found on Earth’s Moon and the planet Mercury. Earth and Venus would show the most, though, were it not for weather and erosion. Sky Surprise: What picture did APOD feature on your birthday? (after 1995)
來源:NASA每日圖片
