来看星星。星星可以被看作远处的“太阳”。在天文界有一个上百年的老问题，

Look at the stars. Stars can be seen as far from the "sun." In astronomy there are a hundred years old question, "Why is the night sky dark?" That is in question, the sky so much, "sun" Why did not the space to illuminate? The answer above: We see that the stars, but in fact they are just images.

Come and see the stars. Stars can be seen as the "sun" in the distance. There is a hundred-year-old question in astronomy, "Why is the night sky black?" "That is, to ask, why doesn't the "sun" in the sky light up space? The answer is the same: we thought the stars we saw were just images of them.

Look at the stars. Stars can be seen as the "sun" in the distance. There is a hundred year old question in astronomy, "why is the sky black at night?" That is to say, why didn't so many "suns" in the sky illuminate the space? The answer is the same as above: the stars we think we see are only their images.