Earth's oldest impact crater found in Greenland

• 15:55 29 June 2012 by Andy Coghlan

You'd have to go to the moon or Mars to find a bigger impact crater than the one discovered in Greenland.

An asteroid 30 kilometres across smashed into Greenland three billion years ago, creating a crater that was once 25 kilometres deep and 600 kilometres wide.

MORE: http://www.newscientist.com/article/dn21996-earths-oldest-impact-crater-found-in-greenland.html

gaw

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