图片发自简书App

红移诶！红移！

Ordinary hydrogen and helium, the principal constituents of cosmic gas clouds, don’t redden light. But larger molecules do—especially those that contain the elements carbon and silicon. And when the molecules get too big to be called molecules, we call them dust.

好吧并不是红移。嗯，红光能量比蓝光低，为什么能量低的反而能穿透呢？还是说，蓝光在穿透的时候被带走了能量，变成了红光？

图片发自简书App

哦哦哦，所以还是不可见光多啊。

图片发自简书App

new vocab: attenuate. To reduce, weaken, decrease.

图片发自简书App

new vocab II: gesticulate. "gesture" + "articulate". To use gesture to express

图片发自简书App

嗯，下次记得找找看。

图片发自简书App

这算是星星的“灵魂”的轮回？

图片发自简书App

宇宙中最壮美的烟花。