Advent of Complex Life
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NASA Astrobiology Institute
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A Walk Through Geologic Time
The Earth Forms - 4567 million years ago
In More Detail:
New Insights Into Formation of Earth, the Moon, and Mars
Fresh Insight Into the Origins of Planet Earth
City College of San Francisco's Page on the Formation of the Earth
(pdf)
‹ Cambridge Science Festival Geological Timeline Walk
up
Oceans and Continents Form - 4400 million years ago ›
4567 million years ago
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