2015 – Evidence life on earth may have begun 4.1 billion years ago
Potential “remains of life” were found in 4.1 billion-year-old rocks in Western Australia, and described in a study from University of California released on the 19th October 2015.
The age of the Earth is about 4.54 billion years, the earliest undisputed evidence of life on Earth dates from at least 3.5 billion years ago.
There is now evidence that suggests life began as early as 4.5 billion years ago.
In March 2017, fossilized microorganisms (microfossils) were announced to have been discovered in hydrothermal vent precipitates from an ancient sea-bed in the Nuvvuagittuq Belt of Quebec, Canada.
These may be as old as 4.28 billion years, the oldest evidence of life on Earth, suggesting “an almost instantaneous emergence of life” after ocean formation 4.41 billion years ago.
Extra Note: In January 2018, a study found that 4.5 billion-year-old meteorites found on Earth contained liquid water along with prebiotic complex organic substances that may be ingredients for life.
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