> humanity's ancestral boogiemen. Comets used to have a bit of a bad reputation, as harbingers of doom. I think there's one in the bible, one appeared before t

> humanity's ancestral boogiemen. Comets used to have a bit of a bad reputation, as harbingers of doom. I think there's one in the bible, one appeared before the Great Plague of London, etc. http://en.wikipedia.org/wiki/Great_Plague_of_London http://en.wikipedia.org/wiki/Great_Plague_of_London "During the winter of 1664, a bright comet was to be seen in the sky[7] and the people of London were fearful, wondering what evil event it portended."