of course, the most important related topic is...
Loss of Musk Ox Genetic Diversity at the Pleistocene-Holocene Transition
BioMed Central via Eureka Alert | 5-Oct-2005 | Juliette Savin
Posted on 10/10/2005 5:13:17 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1500172/posts
impacts, recent and not so much...
A Celestial Collision
Alaska Science Forum | February 10, 1983 | Larry Gedney
Posted on 09/15/2004 9:04:28 AM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1216757/posts
Lake Michigan Impact in 1919:
http://www.freerepublic.com/focus/f-chat/1216757/posts?page=3#3
Giordano Bruno, the June 1975 Meteoroid Storm, Encke, and Other Taurid Complex Objects
Icarus (Volume 104, Issue 2 , pp 280-290) | August 1993 | Jack B. Hartung
Posted on 12/27/2004 2:37:46 PM PST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1309198/posts
Small Asteroid Passes Between Satellites and Earth
Space dot com | 22 December 2004 | Robert Roy Britt
Posted on 12/23/2004 7:36:30 AM PST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1307286/posts
Cosmic Hole-in-One Captured Over Antarctica
RedNova | Monday, 5 September 2005, 20:43 CDT | staff / press release
Posted on 09/05/2005 9:36:19 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1478231/posts
Giant asteroid rocked Antarctica
Near Earth Object Information Centre | 8/20/2004 | staff
Posted on 10/17/2004 9:26:51 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-bloggers/1248406/posts
Grains Found in Ga. Traced to Asteroid
Yahoo / AP | August 24 2004 | editors
Posted on 08/24/2004 11:32:23 AM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1198414/posts
The Hazard of Near-Earth Asteroid Impacts on Earth
Frontiers | 4 March 2004 | Clark R. Chapman
Posted on 12/02/2004 10:51:16 AM PST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1292915/posts
earlier topics, same Richard Firestone, different sources:
Supernova Storm Wiped Out Mammoths?
Discovery News | 09/28/05 | Jennifer Viegas
Posted on 10/04/2005 11:47:27 PM PDT by planetesimal
http://www.freerepublic.com/focus/f-news/1496844/posts
Supernova Storm Wiped Out Mammoths?
Discovery News | Sept. 28, 2005 | Jennifer Viegas
Posted on 10/17/2005 8:57:32 AM PDT by Fzob
http://www.freerepublic.com/focus/f-news/1503957/posts
sidebar:
Supernova debris found on Earth
NEWS@NATURE.COM | 02 November 2004 | Mark Peplow
Posted on 11/24/2004 1:22:08 PM PST by Phsstpok
http://www.freerepublic.com/focus/f-news/1287848/posts
(I guess Peplow never heard of the Eltanin impact?)