Shiva hypothesis
Named after Shiva, the Hindu god of destruction, the Shiva Hypothesis is a hypothesis that purports to explain an apparent pattern in mass extinctions caused by impact events.
The hypothesis, created by Michael Rampino of New York University, says that gravitational disturbances caused by the Solar System crossing the plane of the Milky Way galaxy are enough to disturb comets in the Oort cloud surrounding the Solar System.[1] This sends comets in towards the inner Solar System, which raises the chance of an impact. According to the hypothesis, this results in the Earth experiencing large impact events about every 30 million years (such as the Cretaceous–Paleogene extinction event).
See also
References
- ^ Rampino, Michael R.; Haggerty, Bruce M. (February 1996). "The ?Shiva Hypothesis?: Impacts, mass extinctions, and the galaxy". Earth, Moon and Planets. 72 (1–3): 441–460. doi:10.1007/BF00117548.
External links
- A description of the Shiva hypothesis by Michael Rampino
- Asteroid/Comet Impact Craters and Mass Extinctions and Shiva Hypothesis of Periodic Mass Extinctions, by Michael Paine
- The "Shiva Hypothesis": Impacts, Mass Extinctions, and the Galaxy, by Rampino and Haggerty
- The Shiva hypothesis: impacts, mass extinctions, and the Galaxy, by Rampino, M. R.
- The correlation between mas extinctions and impacts of near-Earth objects. The review of Shiva hypothesis, by Yang Su, Yi Xia and Yanan Zhang.
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