there's an unknown "Planet X" somewhere far out beyond the solar system that's disturbing the comets in the distant region called the Oort Cloud -- where they exist by the millions -- to the point that they shower the Earth and cause extinctions in regular cycles. Daniel Whitmire and John Matese of the University of Louisiana at Lafayette proposed that idea as a cause of major comet showers in 1985
Read more: http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2005/03/10/MNGFIBN6PO1.DTL#ixzz0SKQd2fTP
the theory of mass extinction every 65million years and comet showers caused by planet X???
Read more: http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2005/03/10/MNGFIBN6PO1.DTL#ixzz0SKQd2fTP
the theory of mass extinction every 65million years and comet showers caused by planet X???