Cataclysmic event of a certain age

27 julio 2015

At the end of the Pleistocene period, approximately 12,800 years ago­ — give or take a few centuries — a cosmic impact triggered an abrupt cooling episode that earth scientists refer to as the Younger Dryas. New research has narrowed the date to a 100-year range, sometime between 12,835 and 12,735 years ago.img src=»» height=»1″ width=»1″ alt=»»/