Life on Earth likely started 4.1 billion years ago, much earlier than scientists thought
Posted: 19 Oct 2015 12:41 PM PDT
“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.
Carbon in 4.1 billion year old zircon.
Credit: Stanford/UCLA.
University of California – Los Angeles. “Life on Earth likely started 4.1 billion years ago, much earlier than scientists thought: Evidence that early Earth was not dry and desolate.” ScienceDaily. ScienceDaily, 19 October 2015.
Go to <www.sciencedaily.com/releases/2015/10/151019154153.htm>. to read more about this, or see the journal reference.
Journal Reference:
- Elizabeth A. Bell, Patrick Boehnke, T. Mark Harrison, and Wendy L. Mao. Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon. PNAS, October 19, 2015 DOI: 10.1073/pnas.1517557112
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