Editing 1297: Oort Cloud
Revision as of 16:33, 1 December 2013 by Nealmcb (talk | contribs) (clarify comet nucleus vs comet (not asteroid), as described on talk page (please comment there if you disagree); oort cloud is part of solar system; clarify that we're not positive the object is ISON; clarify later visibility; copyedit)
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