Huge crater under North Sea was created by asteroid impact, scientists say - The Guardian

1. Huge crater under North Sea was created by asteroid impact, scientists say  The Guardian
2. New evidence confirms Yorkshire North Sea asteroid impact  BBC
3. Multiple lines of evidence for a hypervelocity impact origin for the Silverpit Crater  Nature
4. Submerged Crater near Europe Tied to an Impact  eos.org
5. Britain's secret rocky past: Scientists find proof a huge asteroid the size of the Great Pyramid of Giza...  MSN