Eventually—over tens or even hundreds of billions of years—a white dwarf cools until it becomes a black dwarf, which emits no energy.
在几百亿年甚至几千亿年之后，白矮星最终冷却形成黑矮星，后者不再散发任何能量。
Eventually—over tens or even hundreds of billions of years—a white dwarf cools until it becomes a black dwarf, which emits no energy.
在几百亿年甚至几千亿年之后，白矮星最终冷却形成黑矮星，后者不再散发任何能量。
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