CNN News: 赏月看美景

A lunar eclipse happens when the sun, the earth and the moon line up in a straight line in space, with the earth snuck in the middle. The sun shines light on the earth which casts a shadow, and as the moon moves deeper into that shadow, it appears to turn a dark, reddish color.

月食指当月球运行至地球的阴影部分时，在月球和地球之间的地区会因为太阳光被地球所遮闭，就看到月球缺了一块。此时的太阳、地球、月球恰好 (或几乎) 在同一条直线上。地球处于太阳和月球之间。

Why red? Because the atmosphere is filtering out the blue light. Some people have nicknamed this effect, the blood moon.

为什么月食是红色的呢?因为大气层过滤掉了蓝色的光。有些人将这种效果戏称为：血月。

NASA says that lunar eclipse has typically happened at least twice a year, but not all of them are total. There are actually three different times.

美国宇航局称一般而言月食指数每两年发生一次，但是并不是每次都是月全食。实际上月全食有3个不同的周期。

A penumbral eclipse is when the moon passes through the outskirts of the earth`s shadow. NASA says this is so subtle, you might not even notice.

半影月食是月亮环绕地球运行过程中，通过地球的“半影”内的一种特殊天象。美国宇航局称这种现象很微妙，有时候可能根本就爱注意不到。

A partial eclipse is when the moon dips into part of earth`s shadow, but not all of it. So, only a portion of the moon turns dark.

当月球只有部分进入地球的本影时，就会出现月偏食。月偏食发生时，月亮将呈现一半白色，一半古铜色的美丽“模样”。

A total eclipse is the best, that`s when the entire moon is in earth`s shadow, turning into that deep red color. And rarely a total lunar eclipse coincides with the supermoon, which is when the moon is in the closest part of its orbit to earth and looks bigger and brighter. This only happened five times in the entire 20th century.

当月亮、地球、太阳完全在一条直线上的时候，整个月亮全部走进地球的影子里，月亮表面昏暗，形成月全食。月全食时，月亮全部称深红色。月全食很少和超级月亮重合，超级月亮是月球离地球最近的时候，月亮看起来比平时更大、更亮。在20世纪这种现象仅仅发生了5次。

Remember, you don`t need a telescope or any special equipment to view a lunar eclipse. But having vernaculars or telescope might make it more fun.

记住，查看月全食你不需要望远镜或者其他的特殊设备。但是有方言或者望远镜乐趣多。

Either way, just go outside, find the moon and enjoy.

否则的话，就出门去看看月亮，找找乐子吧。