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This is an old revision of this page, as edited by Kheider (talk | contribs) at 22:10, 10 November 2014 (:Exoplanets are simply not as well studied as our own system. It difficult to know the precise mass and diameter of most of these exo-planets, much less where and how big their various equivalents of the asteroid belt(s) and Kuiper belt(s) are). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
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Why is there no mention of exoplanets? Surely the 1,849 exoplanets that have been found have some sort of significance inside of a model which claims to explain their existence? Or is it that the 1,849 exoplanets found defy the nebular hypothesis so there can be no mention of them made here? Elephant in the roomWavyinfinity (talk) 21:39, 10 November 2014 (UTC)
Exoplanets are simply not as well studied as our own system. It difficult to know the precise mass and diameter of most of these exo-planets, much less where and how big their various equivalents of the asteroid belt(s) and Kuiper belt(s) are (might be). We simply need to know more. We also need to better understand planetary migration as in the case of the nice model. -- Kheider (talk) 22:10, 10 November 2014 (UTC)