The “Shiva Hypothesis”: Impacts, mass extinctions, and the galaxy

  title={The “Shiva Hypothesis”: Impacts, mass extinctions, and the galaxy},
  author={M. Rampino and B. M. Haggerty},
  journal={Earth, Moon, and Planets},
The “Shiva Hypothesis”, in which recurrent, cyclical mass extinctions of life on Earth result from impacts of comets or asteroids, provides a possible unification of important processes in astrophysics, planetary geology, and the history of life. Collisions with Earth-crossing asteroids and comets ≥ a few km in diameter are calculated to produce widespread environmental disasters (dust clouds, wildfires), and occur with the proper frequency to account for the record of five major mass… Expand
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  • Geological Society, London, Special Publications
  • 1998
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