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Enzyme-free Krebs cycle may have been key step in origin of life on Earth | The Francis Crick Institute

The Francis Crick Institute is an interdisciplinary medical research institute.
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A set of biochemical processes crucial to cellular life on Earth could have originated in chemical reactions taking place on the early Earth four billion years ago, believes a group of scientists from the Francis Crick Institute and the University of Cambridge.

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Earliest sign of life on Earth found, claim scientists - 

Earliest sign of life on Earth found, claim scientists -  | Bioscience News - GEG Tech top picks | Scoop.it

Microfossils up to almost 4.3 billion years old found in Canada of microbes are similar to the bacteria that thrive today around sea floor hydrothermal vents and may represent the oldest-known evidence of life on Earth, scientists said on Wednesday.

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Tiny filaments and tubes made of a form of iron oxide, or rust, formed by the microbes were found encased in layers of quartz that experts have determined to be between 3.77 billion and 4.28 billion years old, according to the study published in the journal Nature.

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