Evidence from the Ohio River Valley suggests that Earth had a near-miss encounter with a comet about 1,600 years ago, and it still caused considerable devastation.
UC researchers find evidence of cosmic cataclysm 1,500 years ago at 11 ancient sites. The rapid decline of the Hopewell culture about 1,500 years ago might be explained by falling debris from a near-Earth comet that created a devastating.
Ruby: Hopewell Mound Group to be Nominated to the World Heritage List newarkadvocate.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from newarkadvocate.com Daily Mail and Mail on Sunday newspapers.
Use of tobacco pipes by Native groups tells story of regional diversity eurekalert.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eurekalert.org Daily Mail and Mail on Sunday newspapers.