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.
随着白矮星变得没有剩余的燃料用于聚变，它们会在之后的几十亿年中越来越冷，而成为难以被探测到的黑矮星。
Since white dwarves have no fuel left for fusion, they grow cooler and cooler over billions of years to become black dwarves too faint to detect.
相对的，它们最终只是会变冷成为白矮星和黑矮星。
Instead, they should eventually just cool to become white dwarfs and then black dwarves.
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