Maya collapse mystery deepens as scientists find no drought at key site

Between 750 and 900 CE, the Maya lowlands in Central America went through a dramatic drop in population and political power. For years, researchers linked this decline to repeated periods of severe drought. That explanation has long dominated scientific thinking. But new findings based on sediment records stretching back 3,300…

This tiny mammal survived the dinosaur apocalypse and changed life on Earth

Mammals once shared the planet with dinosaurs until a catastrophic event 66 million years ago wiped out about 75% of all life on Earth. Even so, some species managed to survive. Among them were small, rodent-like mammals belonging to the genus Cimolodon. These animals were part of the multituberculates, a…

This hidden kind of stress may be damaging your memory as you age

Stress that people turn inward may be quietly increasing the risk of memory loss in older Chinese Americans, according to new research from Rutgers Health. The study, published in The Journal of Prevention of Alzheimer’s Disease, was conducted by researchers at the Rutgers Institute for Health, Health Care Policy and…

Scientists discover how to freeze transplant organs without cracking them

Cryopreservation, the process of preserving biological tissue by cooling it to extremely low temperatures, often sounds like something out of science fiction. In reality, scientists have been studying and refining this technique for nearly a century. Progress remained slow for decades, but that began to change in 2023, when researchers…

Students build a “cosmic radio” to listen for dark matter

Modern cosmology is often associated with massive observatories, advanced instruments, and large international collaborations backed by significant funding. However, meaningful progress does not always require such scale. Even in the complex search for dark matter, smaller teams with creative approaches and institutional support can still make important contributions. A recent…

Scientists just captured a mysterious quantum “dance” inside superconductors

For the first time, researchers have directly visualized the quantum behavior that drives superconductivity, a state in which paired electrons allow electricity to flow with zero resistance at very low temperatures. But what they observed came as a surprise. In a study published April 15 in Physical Review Letters, the…

Scientists may have found the brain’s switch for chronic pain

New research from the University of Colorado Boulder points to a little-known brain circuit that may determine whether short-term pain fades away or becomes a long-lasting problem. The findings suggest that this pathway plays a key role in turning temporary pain into chronic pain that can persist for months or…

Pesticide exposure linked to 150% higher cancer risk in major study

A major new study published in Nature Health has found a strong connection between environmental exposure to agricultural pesticides and an increased risk of cancer. By combining environmental monitoring, national cancer registry data, and biological research, scientists from the IRD, Institut Pasteur, University of Toulouse, and the National Institute of…

The shocking origin of human eyes traces back to an ancient “cyclops”

Humans share a surprisingly strange ancestor with all other vertebrates. New research suggests that far back in evolutionary history, one of our earliest relatives had a single eye, much like a tiny cyclops, positioned on top of its head. Scientists from Lund University and the University of Sussex report that…

This one change to your exercise routine could add years to your life

Regularly engaging in a variety of physical activities could be one of the most effective ways to extend lifespan, according to research published in the open access journal BMJ Medicine. The findings suggest the relationship is not simply about doing more exercise. Instead, benefits appear to level off after a…

Panama’s ocean lifeline vanishes for the first time in 40 years

Each year during Central America’s dry season (generally between December and April), strong northern trade winds help drive an important ocean process in the Gulf of Panama. These winds push surface waters in a way that allows colder, nutrient-rich water from deep below to rise toward the surface. This process,…

Mezcal worm in a bottle DNA test reveals a surprise

At the bottom of some mezcal bottles sits one of the most recognizable curiosities in the world of spirits: a pale, curled “worm” preserved in alcohol. It has helped give mezcal an air of mystery for decades, but scientists have now shown that this famous bottle stowaway is not a…

Blood vessels found in T. rex bones are rewriting dinosaur science

Despite decades of effort, scientists have never recovered dinosaur DNA. Most paleontology research today still focuses on searching for traces of original organic material in fossils, but DNA has not survived the passage of time. Much of what we understand about dinosaurs comes from fossilized bones and teeth. These durable…

DNA research just rewrote the origin of human species

A sweeping genetic analysis is challenging one of the simplest versions of the human origin story: the idea that all modern humans arose from a single ancestral population in Africa. Instead, the research points to a more intricate beginning, with early human groups spread across Africa, mixing for long stretches…

Fish oil may be hurting your brain, new study finds

A new study from the Medical University of South Carolina is raising fresh concerns about fish oil supplements, especially for people who experience repeated mild traumatic brain injuries. Writing in the journal Cell Reports, researchers report that these widely used supplements, often promoted as protective for the brain, could actually…

Graphene kills harmful bacteria “superbugs” but spares human cells

Hygiene is essential for everyday items that come into close contact with the body, including clothing, masks, and toothbrushes. Scientists have now uncovered how graphene can selectively eliminate bacteria while leaving human cells unharmed. This discovery points to a new class of antibacterial materials that could be both safe for…

Warming waters are supercharging an invasive salmon predator in Alaska

Rising temperatures in a Southcentral Alaska river are driving a noticeable change in the behavior of invasive northern pike. As the water warms, these predators are eating more, raising concerns about the future of native fish such as salmon. Researchers led by the University of Alaska Fairbanks examined the stomach…

Aggressive “hulk” lizards are wiping out millions of years of evolution

For millions of years, a vibrant mix of colors persisted within a single lizard species. Now, much of that diversity has vanished in a remarkably short time. Researchers point to an unexpected cause: a bold green, highly aggressive, and dominant wall lizard that has rapidly eliminated several color forms within…

Scientists just discovered Africa is closer to breaking apart than we thought

Eastern Africa’s Turkana Rift is known both for its rich record of early human fossils and for intense volcanic activity driven by shifting tectonic plates. Now, scientists report that the crust beneath this region has thinned far more than previously understood, pointing to the long term breakup of the African…

Harvard scientists link gut bacteria to depression through hidden inflammation trigger

Scientists have increasingly recognized that the gut microbiome plays an important role in overall health, including the brain. However, researchers are still working to identify which specific bacteria are involved in disease and exactly how they influence the body. One bacterium in particular, Morganella morganii, has been linked in several…

New “optical tornado” technology could transform quantum communication

Can light spin like a whirlwind? Researchers have now shown that it can. Scientists from the Faculty of Physics at the University of Warsaw, the Military University of Technology, and the Institut Pascal CNRS at Université Clermont Auvergne have created swirling “optical tornadoes” inside an extremely small structure. The advance…

This exotic particle could finally explain why matter has mass

Everything around us has mass, but its origin is still one of physics’ biggest unanswered questions. According to modern theories, mass does not simply come from matter itself. Instead, it is tied to the nature of the vacuum, which is not empty space but a dynamic environment with a complex…

Gravitational waves may have created dark matter in the early universe

Gravitational waves may have played a key role in creating dark matter during the universe’s earliest moments, according to a new study by Professor Joachim Kopp of Johannes Gutenberg University Mainz (JGU) and the PRISMA++ Cluster of Excellence, working with Dr. Azadeh Maleknejad from Swansea University. Published in Physical Review…

Giant octopuses may have ruled the oceans 100 million years ago

Modern octopuses are known for their intelligence and flexibility, slipping through tight spaces, hiding in reefs, or drifting through the deep ocean. However, new research suggests their distant ancestors lived very differently. Scientists now believe that the earliest octopuses were not quiet, elusive creatures but massive predators that hunted at…

Giant prehistoric insects didn’t need high oxygen after all, study finds

Three hundred million years ago, Earth looked nothing like it does today. The continents were joined together in a massive supercontinent called Pangaea. Near the equator, vast coal-swamp forests stretched across the landscape. Oxygen levels in the atmosphere were much higher than today, and wildfires were frequent. Life was abundant…

Scientists just found what keeps plant cells from growing out of control

Plants spend most of their lives using photosynthesis to make energy. However, in the earliest phase after a seed begins to grow, they cannot yet capture light. During this short but critical window, they depend on stored fatty acids instead. To break down these fatty acids, plant cells use a…

Astronomers may have found a strange new kind of cosmic explosion

When very massive stars reach the ends of their lives, they explode as supernovae, scattering elements like carbon and iron across space. Another, rarer type of explosion happens when two neutron stars, the dense remnants of dead stars, collide. This event, known as a kilonova, produces even heavier elements such…

Scientists warn about golden oyster mushrooms sold in Florida markets

With its bright yellow, cushion-like caps, the golden oyster mushroom has become a favorite among home growers and food lovers. It is widely available in grow-your-own kits and sold in grocery stores, farmers markets, and specialty shops. However, a University of Florida researcher warns that this appealing mushroom is quietly…