summary - Geochemists have found probable evidence for life on Earth at least 4.1 billion years ago -- 300 million years earlier than previously documented, pushing the origin of life close to when the planet formed, 4.54 billion years ago.
Tuesday, October 20, 2015
4.1 Billion Years Ago
Science Daily: Life on Earth likely started 4.1 billion years ago, much earlier than scientists thought - Evidence that early Earth was not dry and desolate
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