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Astronomers have discovered a colossal structure known as the Giant Arc, located approximately 9.2 billion light-years from Earth and measuring around 1.3 billion light-years across, challenging existing cosmological models. This finding raises significant questions about the cosmological principle, which posits that the universe is isotropic and homogeneous, meaning it should appear uniform in all directions. The Giant Arc, along with another massive structure called the Big Ring, which is also in the same region of the sky, exceeds the theoretical size limit of 1.2 billion light-years for cosmic structures. These discoveries suggest that the universe may not be as uniform as previously thought, prompting scientists to reconsider current models. The exact nature and implications of these structures remain unclear, with researchers calling for further investigation to understand their origins and significance in the cosmos. 
Published: Sep 25 2025, 1 ameznews.inHigh-speed cameras have unveiled the origins of the mysterious will-o’-the-wisps, or ignis fatuus, a phenomenon that has fascinated and frightened humanity for centuries. These ethereal blue lights, often seen in wetlands, are linked to the oxidation of methane produced by decaying organic matter. While previous theories suggested that swamp gas ignited due to phosphine, new research identifies small electrical discharges, termed microlightning, as the ignition source. This occurs when methane bubbles, charged as they move through water, create sparks that facilitate oxidation without combustion, emitting blue-violet light instead of heat. The study highlights the role of transient electrical discharges in natural processes, suggesting that encouraging microlightning could help mitigate methane's greenhouse gas effects. Published in the *Proceedings of the National Academy of Sciences*, the findings offer a fresh perspective on the interplay between folklore and science, hinting that these lights may play a beneficial role in our ecosystem.
Published: Sep 30 2025, 10 pmeznews.inA new genetic analysis of ancient teeth has challenged the long-held belief that Native Americans descended from the Jōmon people of Japan, who lived from around 14,000 to 300 BCE. This theory, based on similarities in stone tools, suggested that the First Peoples migrated to North America via the Bering Land Bridge approximately 15,000 years ago. However, a study led by Professor Richard Scott from the University of Nevada-Reno found minimal genetic links between Native Americans and the Jōmon population, indicating that the origins of Native Americans likely lie elsewhere, possibly in Siberia. The research also coincides with the discovery of ancient human footprints in New Mexico, dating back 23,000 to 21,000 years, suggesting that humans arrived in the Americas much earlier than previously thought. Scott emphasized that the Jōmon are an unlikely source for Indigenous Americans, marking a significant shift in understanding their origins.
Published: Sep 30 2025, 10 pmeznews.inIn a groundbreaking discovery, researchers have unearthed the first naturally mummified big cats—seven cheetahs—inside a cave in northern Saudi Arabia, dating back over 4,000 years. The specimens, found in the Lauga cave network, were preserved due to the cave's stable temperature and humidity, creating ideal conditions for mummification. The oldest skeletal remains are approximately 4,223 years old, while the youngest mummified specimen is around 127 years old. These cheetahs are genetically linked to both the northwest African and critically endangered Asiatic cheetah, both of which are now extinct in the Arabian Peninsula. This discovery is significant as it provides insights into the historical range of cheetahs and could inform future rewilding efforts in the region. Unlike modern cheetahs, which do not inhabit caves, these ancient felids may have entered the caves through steep slopes, becoming trapped. The findings are detailed in a preprint paper on Research Square.
Published: Sep 30 2025, 11 pmeznews.inA new species of opossum, named *Marmosa chachapoya*, has been discovered in the Peruvian Andes by a research team originally seeking a rare squirrel. The tiny marsupial, measuring just 25 centimeters in total length, features distinctive reddish-brown fur and striking black markings around its eyes, resembling a mask. Collected at an elevation of 2,664 meters, this species is believed to inhabit montane forests, although only one specimen has been found to date. Lead researcher Silvia Pavan emphasized the need for further exploration and conservation efforts in the region, highlighting the rich biodiversity of Parque Nacional del Río Abiseo, which is home to various undiscovered species. The findings underscore the importance of scientific research in understanding and protecting the unique wildlife of the Andes. The study has been published in *American Museum Novitates*.
Published: Sep 30 2025, 4 ameznews.inMicrofiber cloths, essential tools for professionals in cleaning and other fields, are made from synthetic fibers finer than one denier, allowing them to effectively trap dirt and bacteria. These cloths can absorb up to seven times their weight in water and, when used with disinfectants, can significantly outperform traditional cleaning methods, particularly in high-germ areas like toilets and showers. Their superior cleaning ability stems from their large surface area, sharp angular edges, and unique physical properties, including capillary action and van der Waals forces, which enhance their dirt-attracting capabilities. However, microfiber cloths contribute to microplastic pollution, shedding tiny fibers during washing. To mitigate this, experts recommend washing with cold water, avoiding detergents, and using microfiber filters in washing machines. While the development of non-shedding textiles is a long-term goal, current solutions focus on reducing microfiber release into the environment.
Published: Sep 30 2025, 10 pmeznews.inA recent study from Brazil suggests that geomagnetic disturbances linked to solar activity may increase the risk of heart attacks on Earth. Conducted by the National Institute for Space Research, the study analyzed hospital records from São José dos Campos between 1998 and 2005, focusing on 1,340 myocardial infarction (MI) cases. Researchers found a correlation between geomagnetic disturbances and a rise in MI hospitalizations and deaths, particularly among women, despite fewer cases overall. This aligns with previous studies indicating that geomagnetic activity can affect heart rate variability, a key health indicator. While the findings are not definitive and call for further research, they contribute to a growing body of evidence suggesting that space weather may have significant implications for cardiovascular health. The study is published in the journal Communications Medicine, highlighting the need for more comprehensive investigations into the relationship between solar activity and human health.
Published: Sep 30 2025, 3 ameznews.inDespite the common belief that placing conkers, walnuts, or Osage oranges around the home can repel spiders, experts assert that these natural remedies are ineffective. Rod Crawford, curator of arachnids at the Burke Museum, highlights that spiders lack the ability to detect airborne odors, which undermines the premise of using these plant products as deterrents. Furthermore, spiders do not pose a threat to horse chestnut trees, meaning there is no evolutionary reason for these plants to develop a defense mechanism against them. While these items may add an autumnal touch to your decor, they could also pose risks to pets, particularly dogs, as some walnuts are toxic and conkers can be choking hazards. Instead of trying to evict spiders, experts suggest embracing their presence, as they can help control other pests in the home.
Published: Sep 30 2025, 9 ameznews.inAstronomers have discovered a significant ripple, dubbed "the Great Wave," traversing the Milky Way, evidenced by the movement of stars at the galaxy's edge resembling a wave in a stadium. Utilizing data from the European Space Agency's Gaia observatory, researchers tracked the motion of approximately 17,000 young giant stars and 3,400 classical Cepheids, revealing vertical shifts of up to 650 light-years. This ripple extends horizontally for at least 30,000 light-years, potentially reaching 65,000 light-years. The warp in the Milky Way's disk, known since the 1950s, is likely influenced by interactions with nearby galaxies. Dr. Eloisa Poggio from the Italian National Institute for Astrophysics emphasized the need for further investigation to understand the origins of these features, suggesting that satellite galaxies may play a role. As Gaia's data continues to be analyzed, scientists anticipate deeper insights into the complexities of our galaxy.
Published: Sep 30 2025, 8 pmeznews.inIn a dramatic encounter captured in Maasai Mara, Kenya, a hungry lion's attempt to hunt a hippopotamus ended in failure. The lion stealthily approached its prey from behind, but once the hippo became aware of the predator's presence, it swiftly retaliated. The footage of this unexpected confrontation highlights the fierce nature of wildlife interactions in the region. While the lion's initial strategy seemed promising, the hippo's quick response showcased its formidable strength and defensive instincts. For those interested in viewing the surprising footage of this encounter, it is available through Maasai Mara Sightings via Storyful. However, access to the full article is restricted to subscribers.
Published: Sep 30 2025, 2 pmeznews.inLake Baikal, located in southeastern Siberia, is the world's oldest and deepest freshwater lake, estimated to be around 25 million years old and plunging to depths of 1,700 meters (5,600 feet). It contains approximately 20 percent of the Earth's unfrozen freshwater and is often referred to as the "Galapagos of Russia" due to its unique biodiversity, with around 80 percent of its species found nowhere else. Among its inhabitants is the Baikal oilfish, a translucent, scale-less species that occupies the entire water column and exhibits cannibalistic behavior. The lake experiences significant temperature fluctuations, freezing over for about five months each year, during which it forms large, mysterious ice rings visible from space. These formations are caused by warm underwater currents, as discovered by NASA scientists in 2020. While the lake's depths harbor various life forms, legends of mythical creatures like Lusud-Khan persist, adding to its allure.
Published: Sep 27 2025, 7 pmFor the fastest, latest, not so wokest news, 'experts say' you need to visit Eznews
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