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Luminous clouds, suspended in space
发光云，悬挂在太空
encircling what was once a star like our own sun.
环绕着曾经类似我们太阳的恒星
All that's left of it are these brightly colored gases
唯一剩下就是这些五彩亮丽的气体
elements formed by nuclear reactions deep inside
在恒星内部深处核聚合反应形成的各种元素
released into space on its death
在恒星死亡之时被释放到太空中
Green and violet, hydrogen and helium
绿色和紫色的是氢和氦
the raw materials of the universe.
它们是宇宙的原始原料
Red and blue, nitrogen and oxygen
红色和蓝色的是氮和氧
the building blocks of life on Earth
它们是构成地球生命的材料
For us to live, stars like this had to die
为了我们的生存，这样的恒星必须死去
Every atom in our body was produced by nuclear fusion
我们身体的每个原子都产自这些已经死亡的恒星核聚变
in stars that died long before the Earth was even born.
很久以后地球才诞生
We are all the stuff of stars
我们都是恒星材料
Our family tree begins here
我们的家谱溯源至此
At its heart, the ghost of a star
云团的核心是恒星的鬼魂
a white swarf
一颗白矮星
White, hot, small
白色、炙热，体积很小
but unbelievably dense
但是密度却是高的难以置信
In the star's dying moments, its atoms fused and squeezed together
当恒星濒临死亡的时候，它的原子融合挤压在一起
making it so dense that just a teaspoon of this white dwarf would weigh 1 ton
让它变得密度极高，一茶匙白矮星的物质就有一吨重
It's a chilling premonition of our sun's fate.
我们太阳也是这种令人胆寒的下场
Six billion years from now, it will become a white dwarf
60亿年后，太阳会变成一颗白矮星
Its death will herald the end of life on earth
它的死亡即宣告我们地球生命的终结
Makes you wonder how many other world have come and gone
这让你好奇到底有多少外面的世界像这样存在和消失
celestial stories left untold, lost forever.
多少未知的宇宙故事永远失落
But the greatest story of them all is still to be told
但是它们中最伟大的故事还是要说的
