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.
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.
由于宇宙中最老的恒星也只有一百亿年至两百亿年的星龄，所以尚未有已知的黑矮星。暂时没有。
Because the universe's oldest stars are only 10 billion to 20 billion years old there are no known black dwarfs-yet.
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.
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.
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