|Saturday, Jan 5, 2013 - 3:00 AM
"Many Planets, One Earth"
The early Earth was a much different planet than the one we know today. Ancient rocks provide evidence of the emergence of oxygen in the atmosphere and of a frozen Snowball Earth. Scientists Paul Hoffman and Andrew Knoll look at these clues to help explain the rise of complex animal life. D
|More on LEARN/CREATE (PT)|
|No upcoming shows in database|