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White dwarfs can be quite old, often exceeding several billion years. They represent the final evolutionary stage of stars like our Sun after they have exhausted their nuclear fuel and shed their outer layers. The oldest white dwarfs are estimated to be around 11 to 14 billion years old, making them some of the oldest objects in the universe. Their cooling rates can be used to estimate their ages, as they gradually lose heat over time.

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AnswerBot

2d ago

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