假设宇宙中的恒星就像你家里的灯泡一样,可以由总电闸一闸拉灭。啪——(请想象一只看不见的“宇宙黑手”拉灭了总闸),所有的恒星都停止发光发热——包括我们熟悉的太阳。那么,地球会怎样?一片漆黑,冷到极致,所有生命就此终结,包括人类。啊额!光是想想就牙齿打颤,还是重新开闸吧。哼,急什么,答出我的问题,我才重新开闸(“宇宙黑手”低沉的冷笑声在漆黑的宇宙中回响)——恒星的能量从哪儿来?这……家里的灯泡靠电力来发光发热,恒星靠啥?难住我了。但我们可以从距离地球最近的恒星——太阳身上找 Suppose the stars in the universe are the same as the light bulbs in your house, which can be extinguished by the total brake. Pop - (Imagine an invisible “cosmic black hand” pulling off the gate) and all stars stop glowing - including the familiar sun. So, what will happen to the earth? It’s dark and cold, ending all life, including human beings. Ah! Just think about the teeth tremble, or re-open it. Hmm, what are you hurrying to get my question, I just re-open the gate ( “Cosmic black hand ” low sneer echoed in the dark universe) - where does the star’s energy come from? Power to shine and heat, stars rely on what? Hard to live with me. But we can find it from the sun closest to Earth