All articles tagged with #science
A large international team has confirmed that Earth-mass planets can maintain stable orbits in the habitable zone of the nearby binary star system 70 Ophiuchi. By analyzing a century of radial velocity data, researchers ruled out the presence of Jupiter-sized giants, resolving a 171-year-old mystery, while showing that smaller rocky worlds could still exist undetected.
Researchers at TU Wien and Tsinghua University have demonstrated the first operational nuclear clocks, using thorium-229 embedded in calcium fluoride crystals to stabilize lasers without external atomic references. Published in Nature, these devices achieve a precision of roughly one second error over 30 million years, outperforming previous prototypes and offering new constraints on dark matter. While not yet matching the best optical atomic clocks, they represent a major step toward more robust, compact timekeeping standards.
A Japanese research team reports that activating the brain's glymphatic waste-clearance system in mice reduced tau protein accumulation by 40%. While this suggests a potential path to slowing Alzheimer's progression, experts caution that human safety and efficacy remain unverified. Concurrent research highlights the complexity of brain waste removal, with new studies identifying additional lymphatic-like channels and emphasizing the critical role of sleep and cardiovascular health in maintaining this system.
Two independent molecular studies confirm that the nearly complete Harbin skull, nicknamed 'Dragon Man,' belongs to the Denisovan lineage. Researchers recovered mitochondrial DNA from dental calculus and analyzed ancient proteins from the skull bone, linking the 146,000-year-old fossil to early Denisovans in Siberia. This discovery provides the first detailed anatomical reference for Denisovans, resolving previous debates about the fossil's identity and expanding the known geographic range of the lineage in Asia.
Scientists captured rare footage of a black swallower fish near Trinidad and Tobago at 1,259 meters depth, showing the small creature swimming with a stomach distended by prey up to ten times its own mass. The fish, which typically measures 10-20 centimeters, possesses a dislocating jaw and balloon-like stomach to consume large meals in food-scarce deep-sea environments. While the footage confirms the extreme distension, the specific prey remains unidentified due to the lack of underwater scanning technology.
NASA released over 800GB of Artemis II mission data, including 11,000 images, 8.5 hours of audio, and crew-annotated observations of lunar impact flashes and geological colors. The dataset, captured during the April 2026 flyby, is the first human-collected planetary science data in over 50 years and is already informing safety protocols for future lunar missions.
A team from the University of British Columbia and the University of Toronto has identified a previously unknown drainage route in the back of the eye, named the posterior ocular lymphatic outflow (POLO) pathway. This system transports fluid and metabolic waste from the retina into the body’s lymphatic network. The discovery challenges a century-old belief that the eye lacked lymphatic drainage and offers new potential targets for treating blindness-causing conditions like glaucoma and macular degeneration.
A new study reveals that the longfin inshore squid possesses a diverse array of hair cells across its entire body, structurally similar to those in human ears. These cells detect water movement, offering a potential new model for understanding human hearing and deafness.
Sabre-toothed cats, or machairodonts, were diverse predators that thrived globally from the Middle Miocene to the Early Pliocene. Recent research indicates their extinction around 10,000 years ago resulted from a combination of climate change, human competition, and genetic decline. While some species like Smilodon were ambush hunters, others like Homotherium hunted cooperatively. A 2026 study highlights that inbreeding caused physical deformities in late populations, accelerating their demise.
The Times of India published a list of ten baby names inspired by legendary scientists, including Isaac, Albert, Marie, and Raman, highlighting their contributions to physics, biology, and space exploration.
A new study published in Nature Communications identifies a specific brain mechanism that may explain why cannabis use sometimes triggers anxiety and panic. Researchers at Northwestern University found that cannabinoids activate somatostatin-producing neurons in the central amygdala, a region responsible for regulating stress responses. In mouse experiments, higher doses of synthetic cannabinoids led to increased freezing behavior and avoidance of threats, effects that were reduced when these neurons were inhibited. This suggests that cannabis can loosen the brain's natural 'brake' on anxiety, particularly when combined with environmental stress.
A niche group of cosmologists argues that dark energy may not exist, claiming that the universe's accelerating expansion is a result of flawed assumptions in General Relativity regarding homogeneity. While mainstream models attribute 70% of the universe's energy to this mysterious force, critics like David Wiltshire suggest that gravity’s effect on time in clumpy regions creates an illusion of acceleration. New simulations and the Euclid telescope aim to test these theories, though current data suggests the standard model remains largely accurate.
Researchers have identified a new Late Cretaceous dinosaur, Infernogallus jamesi, that possessed specialized jaw structures for eating fruit. This discovery provides the first direct evidence linking dinosaur evolution to the rise of flowering plants.
A massive longitudinal study of 21,797 Swedish twins finds that while heavy recreational screen use correlates with depression and anxiety, these links largely disappear when comparing twins raised in the same household. This suggests shared genetic and familial factors, rather than screen time itself, explain much of the association. However, heavy interactive use at age 15 still showed a residual link to later clinical diagnoses, indicating a complex relationship between digital behavior and mental health.
A 165-million-year-old fossil from China, named Megacauda sungei, reveals that early mammal relatives possessed modern-like throat structures for swallowing and swimming adaptations. This discovery, published in Nature, suggests that complex feeding mechanisms evolved long before modern mammals, filling a gap in understanding early mammalian anatomy and semi-aquatic lifestyles.