(单词翻译:单击)
How Stars Die
恒星如何消亡
All stars die eventually, but different stars can die in very different ways.
所有恒星最终都会消亡，但不同恒星的消亡方式大不相同。
Our Sun is a medium-sized star.
我们的太阳是一颗中等大小的恒星。
That means that when the Sun dies, it will simply turn into something called a white dwarf.
这意味着当太阳消亡时，它仅仅会变成一种被称为白矮星的东西。
White dwarves are small, dense celestial objects that contain the matter left over from dead stars.
白矮星是一种小而致密的天体，其中含有死亡恒星遗留下来的物质。
However, some stars are much more massive than our Sun, and their deaths are much more violent.
然而，一些恒星的质量比太阳大得多，它们的死亡也要猛烈得多。
When a massive star gets older, it starts to cool down.
当一颗大质量恒星衰老时，它开始冷却。
This is because the star is using up the last of its fuel.
这是因为恒星正在耗尽最后的燃料。
Once the star has no fuel left, it will implode.
一旦恒星没有剩余的燃料，它就会内爆。
This implosion is called a supernova.
这种内爆被称为超新星。
The event is so bright that if a star in our galaxy caused a supernova, we could possibly see it from Earth.
内爆发生时会非常明亮，如果我们银河系中的一颗恒星产生了超新星，我们可能会从地球上看到它。
The force of a supernova causes the star’s mass to be compressed into a very small space with an incredibly strong gravitational pull.
超新星的力量使恒星的质量被压缩到一个非常小的空间，其中的引力无比强大。
This is called a black hole, and it is so powerful that nothing can escape from it.
这被称为黑洞，它的威力如此之大，以至于任何东西都无法逃脱。
