Tag Archives: Tunguska

When Worlds Collide #55: ‘Wake-up Call’ from Outer Space

Text of my ‘When Worlds Collide’ column published in Ceylon Today Sunday newspaper on 17 February 2013 See also column on 23 Dec 2012: Avoiding the ‘Mother of All Tsunamis’ Follow up column on 3 March 2013: When Worlds Collide … Continue reading

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