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From the Daily Galaxy:
On Earth, simple life appears to have formed quickly, but it likely took many millions of years for very simple life to evolve the ability to photosynthesize.
“The early Earth certainly wasn’t a hellish, dry, boiling planet; we see absolutely no evidence for that,” said Harrison [UCLA]. “The planet was probably much more like it is today than previously thought.”
UCLA geochemists have found evidence that life likely existed on Earth at least 4.1 billion years ago — 300 million years earlier than previous research suggested. The discovery indicates that life may have begun shortly after the planet formed 4.54 billion years ago.
The new research suggests that life existed prior to the massive bombardment of the inner solar system that formed the moon’s large craters 3.9 billion years ago. More.
At first, we did a double take here, thinking this item was from “Let There Be Light” Devotionals. But, come to think of it, there may be something in the fact that so many of these sources are beginning to sound alike, where origin of life is concerned.
Origin of life: Something momentous happened 4.5 bya that is not at all like what happens today. And no one knows a thing about it. But there are plenty of stories.
Note: UCLA published a media release in 2015, to the same effect.
UCLA geochemists have found evidence that life likely existed on Earth at least 4.1 billion years ago — 300 million years earlier than previous research suggested. The discovery indicates that life may have begun shortly after the planet formed 4.54 billion years ago.
The research is published today in the online early edition of the journal Proceedings of the National Academy of Sciences.
“Twenty years ago, this would have been heretical; finding evidence of life 3.8 billion years ago was shocking,” said Mark Harrison, co-author of the research and a professor of geochemistry at UCLA.
Back soon. See also: And once more: Life can arise naturally from chemistry!
Researchers: Bacteria fossils predate the origin of oxygen
Rob Sheldon: Why the sulfur-based life forms never amounted to much
Welcome to “RNA world,” the five-star hotel of origin-of-life theories
and
What we know and don’t know about the origin of life
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