Thanks annie for the ping.
28 October 2004
COMET STRIKE SURPRISINGLY MORE LIKELY
http://www.astrobiology.cf.ac.uk/ccabnews.html
Research conducted by a Cardiff University astronomy scientist suggests that a comet colliding with Earth is actually more likely than was previously believed.
Professor Chandra Wickramasinghe, Honorary Professor Bill Napier and research student Janaki Wickramasinghe of Cardiff University’s Centre for Astrobiology believe that some comets are not visible using current astronomical scanning equipment. They argue that if this is the case, international programmes designed to detect near-Earth asteroids, and ways to reduce the worst effects of them colliding with Earth may need to be urgently reviewed.
regarding my #12.
Threat of Cometary Impacts may be Underestimated
SpaceDaily | 10/27/2004
Posted on 10/27/2004 10:54:44 AM EDT by cogitator
http://www.freerepublic.com/focus/news/1258710/posts?page=12#12