今年,我国将择机发射嫦娥五号探测器到月球。“嫦娥五号”去干什么?它要去探测月球,还要弄点月壤回来。什么是月壤?月壤是覆盖在月球表面的直径小于1毫米、具有黏性的细小粒子。月壤在月球各处的厚度不同,薄的只有几厘米,厚的有五六米。到月球上去,不容易;从月球上抓点月壤带回来,更不容易。“嫦娥三号”在2013年就降到月球上,“看看”这儿,“看看”那儿,可惜 This year, China will choose to launch the Chang’e-5 probe to the moon. “Chang’e V ” to do? It is going to explore the moon, but also get some lunar return. What is the lunar soil? The lunar soil is covered by the moon’s surface, the diameter of less than 1 mm, with sticky small particles. The lunar soil varies in thickness across the moon, only a few centimeters thin, and five or six meters thick. It is not easy to go up to the moon; it is even harder to catch the moon from the moon. “Chang’e III ” dropped to the moon in 2013, “look ” here, “look ” there, but unfortunately