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'Oddly shaped rock' unearthed in California turns out to be 'immaculate' mastodon molar
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'Oddly shaped rock' unearthed in California turns out to be 'immaculate' mastodon molar

An exceptionally well-preserved fossilized molar belonging to an adult Pacific mastodon has surfaced in a nature preserve near San Francisco.Upon first glance, the ancient tooth looked like an "oddly shaped rock" to geologists who were conducting fieldwork in the area, according to a statement from the Midpeninsula Regional Open Space (Midpen), which runs the preserve. But the find was quickly unmasked as a valuable fossil from the last ice age and was sent to scientists at Stanford University for carbon dating."The tooth itself is in immaculate condition," Wayne Thompson, a paleontologist and the CEO of Pacific Paleontology, a consulting firm that carried out a preliminary analysis, said in...

📅 2026-09-11 18:11:48    •    Live Science
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New study offers a detailed look at how wildfire smoke impacts Reno's air quality
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New study offers a detailed look at how wildfire smoke impacts Reno's air quality

With Western wildfires increasing in size, duration and intensity, millions of Americans are now exposed to wildfire smoke each year. In California, 2020 and 2021 were particularly challenging, with a 10-fold increase in fires compared with any time in the state's history. Northern Nevada is positioned to receive much of the smoke from California wildfires, and Reno residents experienced months of smoke-shrouded skies during this time. Now, a new study gives us a deeper look into the potentially hazardous chemicals lurking in this smoke.

📅 2026-09-11 18:00:05    •    Phys.org
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AI extracts interpretable constitutive laws directly from solid-mechanics data
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AI extracts interpretable constitutive laws directly from solid-mechanics data

Researchers at the Eastern Institute of Technology (EIT), Ningbo, have developed a graph-based approach that directly extracts concise, accurate constitutive equations from solid-material experimental data. The study, published in Science Advances, describes a method for discovering constitutive models for alloy steels, lithium metal and filled rubbers. It outperforms mainstream empirical models in predictive accuracy while preserving explicit, physically interpretable mathematical formulations.

📅 2026-09-11 18:00:01    •    Phys.org
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'There are no easy answers here': New study forecasts a dire dip in food production if key Atlantic currents collapse
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'There are no easy answers here': New study forecasts a dire dip in food production if key Atlantic currents collapse

Weakening Atlantic Ocean currents could cripple agriculture in some of the world's major breadbaskets, threatening global food security and raising the price of basic commodities, new research finds.The study, which hasn't been peer-reviewed yet, investigated how a roughly 60% decline in the Atlantic Meridional Overturning Circulation (AMOC) would impact global food production. The AMOC is a system of ocean currents that regulates the global climate and brings heat from the tropics to the Northern Hemisphere.However, the system is currently the weakest it's been in more than 1,000 years, having lost 10% to 20% of its strength due to climate change, estimates show.In the new study, researcher...

📅 2026-09-11 17:32:31    •    Live Science
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Brain's ability to hear a musical beat remains distinctly human, study suggests
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Brain's ability to hear a musical beat remains distinctly human, study suggests

The seemingly trivial ability to hear a regular pulse in music is a remarkable—and perhaps distinctively human—feature of the brain. In a wide-ranging critical review, Gábor Háden of the HUN-REN Research Centre for Natural Sciences and Henkjan Honing of the University of Amsterdam evaluate more than two decades of research into how this capacity develops and has evolved. Their paper was published this week in the Annals of the New York Academy of Sciences.

📅 2026-09-11 17:20:04    •    Phys.org
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'Maybe that is how Transformers started': Readers react to the possibility of AI becoming self-aware
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'Maybe that is how Transformers started': Readers react to the possibility of AI becoming self-aware

While artificial intelligence (AI) systems can now solve challenging math equations and respond in human-like language, the question of AI consciousness has moved from the realm of sci-fi to scientific discussion. The debate has become more mainstream thanks to a recent preprint study that examined "consciousness steering," an AI-tuning technique that affects how an AI model expresses ideas about self-awareness. The researchers suggested that if AI is allowed to claim it is conscious, it's also more likely to state that it believes in ghosts or vampires. Although the study hasn't been peer-reviewed yet, it raises a big question in the world of AI research: Could AI one day develop real consc...

📅 2026-09-11 17:07:09    •    Live Science
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Electrical pulses convert PFAS waste into valuable silver fluoride
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Electrical pulses convert PFAS waste into valuable silver fluoride

Fluorinated waste, like that found in firefighting aqueous film-forming foam, can act as a significant environmental pollutant. Recently, James Tour's lab at Rice University developed a method to capture fluoride from these waste streams and recycle it into a useful reagent, silver fluoride, that could be used in other manufacturing processes. This process is published in Nature Chemical Engineering.

📅 2026-09-11 17:00:07    •    Phys.org
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Microscopic fragments of ancient alien tech may litter the moon — and scientists have a plan to find them
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Microscopic fragments of ancient alien tech may litter the moon — and scientists have a plan to find them

Tiny fragments of ancient alien tech may be strewn across the surface of the moon, and it may be relatively easy to find these microscopic relics, scientists propose in a new study.The theoretical study does not claim to have found any evidence of advanced alien civilizations; rather, it offers a new way to search for clues of their existence. Unlike Earth, the moon has no functional atmosphere or magnetic field, so it is completely exposed to the vacuum of space. As a result, it is constantly bombarded by meteorites, as well as hit by a steady stream of microscopic particles from the rest of the solar system and beyond. Because the moon has no water or tectonic movements, this microscopic m...

📅 2026-09-11 15:29:59    •    Live Science
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Research shows agricultural fungicides drive evolution of multidrug resistance in soil microbes
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Research shows agricultural fungicides drive evolution of multidrug resistance in soil microbes

Two newly published studies from Trinity College Dublin scientists raise significant concerns about the use of agricultural fungicides.That is because they show fungicides can rapidly drive soil microbes to evolve multidrug resistance to clinically important drugs and, when combined with warmer temperatures, disrupt soil microbes in ways that negatively affect plant growth.

📅 2026-09-11 14:00:01    •    Phys.org
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