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A new study from the Max Planck Institute of Geoanthropology, the Natural History Museum in London, and the University of Cambridge sheds light on the migration of _Homo sapiens_ from Africa, the species' ancestral home for over 200,000 years. While small groups had previously attempted to leave, they left no genetic legacy, suggesting their efforts were unsuccessful. The research indicates a significant ecological shift around 70,000 years ago, enabling humans to adapt to diverse environments, from dense forests to arid deserts. This newfound ecological flexibility likely prepared them for successful migrations out of Africa around 60,000 years ago, despite challenging conditions. The study posits that a cultural Renaissance, characterized by increased social interaction and idea exchange, may have played a crucial role in this expansion. The findings are detailed in the journal *Nature*. 
Published: Jun 18 2025, 11 pmeznews.inAstronomers have unveiled a breathtaking new map of the Sculptor Galaxy, located 11 million light-years away, using the European Southern Observatory’s Very Large Telescope. Discovered by Caroline Herschel in 1783, this spiral galaxy is currently undergoing a vigorous phase of star formation, and the new map showcases thousands of colors, revealing intricate details of its structure. Utilizing over 50 hours of observations with the Multi Unit Spectroscopic Explorer (MUSE), researchers identified around 500 planetary nebulae—an unprecedented number for a galaxy outside our local group. These nebulae are crucial for determining the galaxy's distance and understanding its evolution. The study allows scientists to examine star formation processes at an unprecedented scale, with plans to further investigate gas flows and their role in star creation. The findings are detailed in a paper published in Astronomy & Astrophysics, marking a significant advancement in our understanding of complex galactic systems.
Published: Jun 18 2025, 7 pmeznews.inIn a remarkable feat of scientific achievement, CERN's Large Hadron Collider (LHC) set a record in 2012 by generating an astonishing temperature of 5 trillion Kelvin, surpassing previous records and creating conditions akin to those just moments after the Big Bang. This temperature is approximately 100,000 times hotter than the core of the Sun, showcasing human ingenuity in manipulating extreme heat for scientific exploration. The LHC, a 27-kilometer circular accelerator located in Switzerland, achieves these temperatures by colliding lead ions at nearly the speed of light, resulting in a quark-gluon plasma—a state of matter theorized to have existed in the early universe. While the LHC's record was officially recognized in August 2012, the initial achievement occurred in 2010, highlighting the complexities of measuring such extreme conditions. This groundbreaking work not only advances our understanding of the universe's primordial state but also underscores the collaborative efforts of physicists worldwide.
Published: Jun 18 2025, 6 pmeznews.inTachysensia, a little-known phenomenon characterized by distorted perceptions of time and sound, has gained attention through a Reddit community of over 5,000 members who share their experiences. Described as feeling time speeding up while sounds become amplified or muffled, many individuals report episodes lasting between five to ten minutes, often beginning around puberty. Clinical associate professor Osman Farooq has been researching the condition, suggesting it may be linked to migraine presentations. Some parallels have been drawn between tachysensia and Alice in Wonderland syndrome (AIWS), which also involves altered perceptions, though opinions on their connection vary within the community. Despite the intriguing nature of tachysensia, formal research remains scarce, prompting calls for greater scientific inquiry into this phenomenon, which could offer valuable insights into neurology. As awareness grows, experts hope to uncover more about this enigmatic condition.
Published: Jun 19 2025, 5 ameznews.inA recent study has revealed that the Chinese giant salamander, long considered a single species, may actually comprise up to nine distinct species, prompting renewed calls for enhanced conservation efforts for this critically endangered group. Previously, in 2019, researchers identified three species, with the South China giant salamander recognized as the world's largest amphibian, reaching lengths of up to 1.8 meters. The latest findings, based on genetic analysis, indicate that while these salamanders appear similar, they have genetically diverged into at least seven distinct species, with the possibility of nine. The original species, _Andrias davidianus_, is critically endangered due to overexploitation and habitat loss. Conservation measures currently in place do not automatically extend to the newly identified species, highlighting the urgent need for further research and legislative recognition to prevent the loss of these unique amphibians. The study is published in the *Evolutionary Journal of the Linnean Society*.
Published: Jun 19 2025, 12 ameznews.inResearchers from Occidental College and the California Institute of Technology have discovered three new species of _Sericosura_ sea spiders off the US coast, which have developed a unique survival strategy in the deep seafloor's dark, cold environment. These spindly creatures cultivate methane-eating bacteria on their exoskeletons, which they consume for nutrition. The team collected specimens from California and Alaska using the submersible _Alvin_, revealing that the spiders utilize chemosynthesis to derive energy from methane gas seeping from the ocean floor. Lead author Shana Goffredi noted that the spiders graze on the bacteria, much like eating breakfast. This symbiotic relationship not only aids the spiders' survival but may also play a role in trapping climate-warming methane, highlighting a previously unknown interaction between marine life and methane-oxidizing microbes. The findings, published in the *Proceedings of the National Academy of Sciences*, underscore the complex dynamics of deep-sea ecosystems.
Published: Jun 18 2025, 9 pmeznews.inSocrates once asserted that an unexamined life is not worth living, a notion that faced skepticism in ancient times, where religious adherence often took precedence. However, as humanistic philosophies emerged, thinkers like Kant and Jacobi began to explore the implications of reason, leading to the unsettling realization of nihilism in the 18th century. Nihilism, often viewed as a bleak philosophy denying objective meaning or moral truths, has recently undergone a re-evaluation. Philosophers like Joe Cunningham suggest that acknowledging life's inherent meaninglessness can be liberating, prompting individuals to define their own values. This perspective encourages a shift away from societal pressures, allowing for a more authentic existence. While embracing nihilism poses challenges, it also offers the potential for self-creation and personal freedom, inviting individuals to find meaning in their own terms amidst a seemingly indifferent universe.
Published: Jun 19 2025, 3 ameznews.inNew research has confirmed that humans were present in the Americas as early as 23,000 years ago, based on ancient footprints found at White Sands, New Mexico. These prints, the oldest known in North America, were previously dated using seeds and pollen, but faced skepticism regarding their age. Professor Vance Holliday from the University of Arizona conducted further studies at a nearby lakebed, revealing sediment layers that corroborated the original dating of the footprints. Despite this confirmation, researchers are puzzled by the absence of cultural artifacts from this period, which predates the well-documented Clovis culture by 10,000 years. Holliday speculates that these early hunter-gatherers may have existed in small, transient populations that ultimately became extinct, with the Clovis culture representing the first significant, widespread human adaptation in North America. The findings were published in the journal Science Advances.
Published: Jun 19 2025, 12 ameznews.inA recent study highlights a troubling correlation between lax gun laws and increased pediatric firearm deaths in the United States, revealing over 7,400 excess deaths from 2011 to 2023. Conducted by Dr. Jeremy Faust and colleagues, the research analyzed data following the landmark 2010 Supreme Court case _McDonald v. Chicago_, which weakened state gun control measures. The findings indicate that states with the most permissive gun laws experienced 6,029 excess firearm deaths among children, while those with strict laws saw a decrease of 55 deaths. The study also noted a disproportionate impact on Black children, who are now more likely to die from gun violence in these permissive states. The authors emphasize the need for policy changes to address this public health crisis, asserting that gun laws significantly affect children's safety. The study is published in JAMA Pediatrics, underscoring the urgent call for collective action to combat pediatric firearm mortality.
Published: Jun 19 2025, 1 ameznews.inSharks, known for their status as apex predators and robust immune systems, have revealed a surprising aspect of their biology: their pancreas plays a crucial role in immune defense. Unlike mammals, sharks lack lymph nodes and tonsils but can produce antibodies and protective cells. A study led by Thomas Hill at the University of Maryland examined nurse sharks and discovered immune cell clusters in their pancreases, specifically B cells, which are vital for antibody production. Initially thought to be a sampling error, further analysis confirmed these clusters were effective in identifying B cells to combat infections. Immunizing sharks with a protein and the COVID-19 vaccine demonstrated that their pancreases produced specific antibodies, suggesting a unique immune response mechanism. This finding raises questions about the function of human pancreases and their susceptibility to inflammation, hinting at evolutionary links to ancient species like sharks. The research is published in The Journal of Immunology.
Published: Jun 18 2025, 10 pmFor the fastest, latest, not so wokest news, 'experts say' you need to visit Eznews
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