Snowball Earth
- Episode aired Mar 2009
- TV-PG
- 43m
The Earth was once entombed in sheets of ice miles deep, extinguishing nearly all life. Travel to the ends of the earth with intrepid scientists investigating the Snowball Earth event. Could... Read allThe Earth was once entombed in sheets of ice miles deep, extinguishing nearly all life. Travel to the ends of the earth with intrepid scientists investigating the Snowball Earth event. Could this controversial theory be the key to the evolution of mankind on Earth? Deep in the Au... Read allThe Earth was once entombed in sheets of ice miles deep, extinguishing nearly all life. Travel to the ends of the earth with intrepid scientists investigating the Snowball Earth event. Could this controversial theory be the key to the evolution of mankind on Earth? Deep in the Australian outback a smooth grey stone stands out in the parched red earth. The stone is ove... Read all