Earliest known life forms

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Notion

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Science and technology

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What Wikipedia says

The earliest known life forms on Earth may be as old as 4.1 billion years (or Ga) according to biologically fractionated graphite inside a single zircon grain in the Jack Hills range of Australia.

Excerpt from the Wikipedia article “Earliest known life forms”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: NOAA, Public domain, via Wikimedia Commons.