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#ison — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #ison, aggregated by home.social.

  1. There is strong evidence that comet #ISON (2013), #Kirch (1680) and #Negra (1347) are the same object. Orbital synchronicity between the comet and Earth suggests Earth went through the comet's tail in December 1347 causing widespread destruction.
    ssgeos.org/articles/comet-negr