• Nature
  • By Laura Sinpetru
  • October 9th, 2013
Comet Hit the Earth 28 Million Years Ago, Rained Down “a Shock Wave of Fire”

Comet Hit the Earth 28 Million Years Ago, Rained Down “a Shock Wave of Fire”

The comet exploded over Egypt, heated sand in the Sahara Desert to 2,000 degrees Celsius