Astronomy: The age of the Universe

  title={Astronomy: The age of the Universe},
  author={Christopher Sneden},
  • C. Sneden
  • Published 8 February 2001
  • Physics
  • Nature
Dating the Universe has always been a tricky business with unsatisfying answers. Astronomers now have a better clock, based on radioactive uranium, that puts the age at around 12.5 billion years. 

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