小读者们已经知道,我国正在积极实 施“嫦娥工程”的前期工作,争取早日登上 月球。其实不仅是我国,世界上其他国家, 如美国、欧盟、日本、印度也都在积极筹划 新一轮的月球探测。那么,是什么原因使大 家对月球表现出如此巨大的兴趣呢? 首先,是为了满足人们对未知世界求 知的欲望。大家知道,在人类的早期,人们 就对每日夜晚东升西落的月亮充满了疑惑和 想像。嫦蛾奔月的故事,战国时期大诗人屈 原的疑问:“日月安居?列星安陈?”就是 人们渴望了解月球的具体表现。今天,空间 技术的发展,虽然已使我们对月球有了许多 崭新的了解,但仍然有许多月球之谜在等待 着我们去破解。譬如,月球到底是怎样形成 的?它是地球的挛生兄弟,还是地球的儿 子？或者,它只不过是地球俘虏的一个伴 侣？再比如,月球自形成以来,曾经发生过 Little readers already know that our country is actively implementing the preparatory work for Chang'e Project so as to get to the moon as early as possible. In fact, not only our country but also other countries in the world, such as the United States, the European Union, Japan and India, are actively planning a new round of lunar exploration. So, what is the reason for everyone to show so much interest in the moon? First, in order to satisfy people's desire for knowledge of the unknown world. As we all know, in the early days of mankind, people were full of doubts and imagination about the moon that rose at night every night. Chang moths to the moon story, the Warring States Period, the poet Qu Yuan's question: “The sun and the moon to live? Are stars Chen?” Is that people are eager to understand the specific performance of the moon. Today, the development of space technology, although it has given us a lot of new understanding of the moon, but there are still many mysteries of the moon are waiting for us to crack. For example, how is the moon formed? Is it the earth's twin brother or son of the earth? Or is it just a companion to the Earth captive? As another example, since the formation of the moon, it happened