Neptune May Crush Methane Into Diamonds

  title={Neptune May Crush Methane Into Diamonds},
  author={Richard A. Kerr},
  pages={25 - 25}
  • R. Kerr
  • Published 1 October 1999
  • Geology, Medicine
  • Science
Laboratory researchers simulating the hellish interiors of Neptune and Uranus, where heat and pressures can be far more intense than in the depths of Earth, are finding, among other surprises, tiny flecks of diamond. On page 100 of this issue of Science, a mineral physicist and her colleagues report that methane--a major constituent of Neptune and Uranus9s deep interiors--decomposes far more easily than predicted when it is heated and squeezed in the laboratory. That decomposition, which… 

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