Researchers find massive impacts dispersed chlorine, helped make Earth habitable
Wednesday, May 22, 2013 - 07:30
in Astronomy & Space
(Phys.org) —Life as we know it may not have existed if the Earth wasn't repeatedly bombarded by massive planetary bodies more than 4 billion years ago according to new research conducted by scientists at the University of New Mexico and NASA Johnson Space Center. The results of the massive collisions indicate that much of Earth's supply of chlorine was blown away creating a habitable environment suitable for the existence of complex forms of life – including humans.