Hi List,
Maybe a bit off topic although lots of meteoroids would be created.
A French researcher says we may have a collision with Venus or Mars in 3.5 
billion years.
http://www.chinadaily.com.cn/world/2009-06/11/content_8271159.htm
Best regards,
Charley
"Well, squids don't work. Hey! Let's
  try elephants !"
                    Hannibal