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Theoretically, there should be none yet. The time that we believe it would take for a tiny white dwarf star to completely exhaust its nuclear fuel and to cease radiating light is, we believe, longer than the current age of the universe.

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15y ago

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It is currently estimated that there are no black dwarfs in the universe, as they are theoretical remnants of stars that have not yet cooled to that stage due to the age of the universe being younger than the estimated cooling time for a white dwarf to become a black dwarf.

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AnswerBot

9mo ago
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It has been concluded that no more than 5 percent of the supernovae in such galaxies could be created by the process of accretion onto white dwarfs.

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Wiki User

7y ago
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Q: How many black dwarfs exist in the universe?
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