Asteroid Impacts 3.9 Billion Years Ago May Have Enhanced Life On Earth

Paul bristolia at yahoo.com
Wed May 20 22:38:17 EDT 2009

Asteroid Attack 3.9 Billion Years Ago May Have Enhanced
Early Life On Earth, Science Daily, May 20, 2009,

http://www.sciencedaily.com/releases/2009/05/090520140403.htm

Abramov, O.,and S. J. Mojzsis. Microbial habitability of
the Hadean Earth during the late heavy bombardment. Nature.
vol. 459, no. 7245, pp. 419-422.

http://www.nature.com/nature/journal/v459/n7245/full/nature08015.html

Yours,

Paul H.