NEW STUDY SUGGESTS EARTH EXISTED 300 MILLION YEARS EARLIER THAN EXPECTED
NOVEMBER 1, 2015
Just recently, the University of California at Los Angeles (UCLA) combined a group of geochemists that unraveled the unknown history of our world. Having found evidence that Earth had already been inhabited by life 4,100 million years ago. This means that there was life on this planet 300 million years earlier than we had expected.
published into the Proceedings of the National Academy of Sciences (PNAS).
“We need to think differently about the early Earth.” - Elizabeth Bell, Investigator from UCLA
This new study proclaims that life existed before the mass onslaught of the inner solar system that took place about 3,900 million years ago when a menagerie of intergalactic objects would crash into the very moon and earth themselves.
“Twenty years ago, this would have been heretical; finding evidence of life 3.8 billion years ago was shocking. Life on Earth may have started almost instantaneously. With the right ingredients, life seems to form very quickly.” -Mark Harrison, co-author of the research found as well as the professor of geochemistry at UCLA.
These zircons preserve the immediate environment around which led the team of researchers to believe that the zircons were acting as ‘time capsules’.
“If all life on Earth died during this bombardment, which some scientists have argued, then life must have restarted quickly.” States Patrick Boehnke, co-author of the research as well as a graduate student from Harrison’s classes.
With the use of spectroscopy, the team was able to identify 656 zircons that contained dark specs. This technique allows them to see the molecular and chemical structure of ancient microorganisms in three dimensions. To their surprise, they had found graphite within 79 of the zircons.
“There is no better case of a primary inclusion in a mineral ever documented, and nobody has offered a plausible alternative explanation for graphite of non-biological origin into a zircon.” Harrison claims.
Only more and more questions stem from these findings. Hopefully, we can finally know the entire truth of our world that lived before us.