News tagged with comet theory

No evidence for ancient comet or Clovis catastrophe, archaeologists say

(PhysOrg.com) -- New research challenges the controversial theory that the impact of an ancient comet devastated the Clovis people, one of the earliest known cultures to inhabit North America.

Other Sciences / Archaeology & Fossils

Sep 29, 2010 | 3.9 / 5 (14) | 7 |

Charcoal evidence tracks climate changes in Younger Dryas

A new study reports that charcoal particles left by wildfires in sediments of 35 North American lake beds don't readily support the theory that comets exploding over the continent 12,900 years ago sparked ...

Space & Earth / Earth Sciences

Jan 28, 2009 | 4.4 / 5 (7) | 0