Asteroid Impacts 3.9 Billion Years Ago May Have Enhanced Life On EarthPaul 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,
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.