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A comment on Mass Extinction and the Structure of the Milky Way (2013). Parent comment

Re:Mass Extinction and the Structure of the Milky Way (2013) by Tepix on Monday May 08, 2017 @05:08AM (#14290192)
Are you familiar with the theory of the Late Heavy Bombardment? https://en.wikipedia.org/wiki/Late_Heavy_Bombardment
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Re:Mass Extinction and the Structure of the Milky Way (2013) by koheripbal on Monday May 08, 2017 @03:50PM (#14294945)
The predominant theory, though, is that the bombardment was caused by changes within our own solar system, not from outside - per your link
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