Snowball Earth
S1 E2 December 1, 2008 0h 48m
★ 10.0
Source:
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Overview
650 million years ago Earth froze, pushing life to the edge of extinction.
Guest Stars
Dr. Jim Gehling
Self - Palaeontologist
Dr. Shad O' Neal
Self - Glaciologist
Dr. Joseph Kirschvink
Self - Geobiologist
Dr. Don Perovich
Self - Geophysicist
Dr. Hazel Barton
Self - Microbiologist
Dr. John Power
Volcanologist
