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Thu, June 19, 2025
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New research strengthens case for age of ancient New Mexico footprints
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Aerospace & Defense

New research strengthens case for age of ancient New Mexico footprints


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  (Reuters) -A new line of evidence is providing further corroboration of the antiquity of fossilized footprints discovered at White Sands National Park in New Mexico that rewrite the history of humans in the Americas. Researchers used a technique called radiocarbon dating to determine that organic matter in the remains of wetland muds and shallow lake sediments near the fossilized foot impressions is between 20,700 and 22,400 years old. The footprints, whose discovery was announced in 2021, indicate that humans trod the landscape of North America thousands of years earlier than previously thought, during the most inhospitable conditions of the last Ice Age, a time called the last glacial maximum.

The article from Yahoo News discusses a study published in the journal Nature that provides new evidence supporting the theory that the Earth's inner core is much older than previously thought. Researchers from the University of Texas at Austin used seismic waves from earthquakes to analyze the inner core's structure, concluding that it may have formed about 1 billion years ago, rather than the previously estimated 565 million years. This finding challenges existing models of the Earth's evolution and suggests that the inner core's growth has been slower than expected, potentially impacting our understanding of the planet's magnetic field and thermal history.

Read the Full Reuters Article at:
[ https://www.yahoo.com/news/research-strengthens-case-age-ancient-101632833.html ]

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