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What is the age of the oldest star known?

    The age of the oldest star known, as of current scientific understanding, is estimated to be around 13.8 billion years. This aligns with the age of the universe itself, as determined by observations of the cosmic microwave background radiation. The star in question, SMSS J031300.36−670839.3, is a metal-poor star located in the Milky Way’s halo. Its age is inferred based on its extremely low metallicity, indicating that it formed during the early stages of the universe when heavy elements were scarce.

    Studying such ancient stars provides valuable insights into the early conditions of the universe, the processes of stellar nucleosynthesis, and the formation of the first generation of stars.


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