Diamonds suggest comets caused killer cold spell

  • Tiny diamonds sprinkled across North America suggest a "swarm" of comets hit the Earth around 13,000 years ago, kicking up enough disruption to send the planet into a cold spell and drive mammoths and other creatures into extinction, scientists reported on Friday.

Related Stories

An Introduction to Cisco Spark Board      

8 Tips For Your Next Auto Loan

Benefits of Hiring a Safety Consultant for Your Business