[meteorite-list] Asteroid Impacts 3.9 Billion Years Ago May Have Enhanced Life On Earth

[Paul]

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.