Earth Hammered by Prehistoric Double Space Impact
Ancient Earth hammered by double space impact
By Paul Rincon, BBC News, March 18, 2014
http://www.bbc.com/news/science-environment-26172181
What's worse than one asteroid hitting Earth?
Scientists identify double impact crater by James
Vincent, The Independent, March18, 2104
http://www.independent.co.uk/news/science/whats-worse-than-one-asteroid-hitting--earth-scientists-identify-double-impact-crater-9201785.html
Yours,
Paul H.
