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As people grow older, their cells gradually become less efficient at producing energy and responding to changing demands. Scientists have long known that mitochondria, often called the cell’s powerhouses, play a central role in this decline. Now, researchers at the Leibniz Institute on Aging (FLI) in Jena, Germany, have identified…
One of the biggest questions in science is how life first emerged on Earth. Researchers generally agree that the appearance of the first biopolymers and their building blocks marked a critical step in the origin of life (OoL). However, scientists still do not know exactly how a collection of prehistoric…
MIT engineers are developing a new spacecraft propulsion system that combines the strengths of traditional chemical rockets with the efficiency and precision of electric thrusters. The technology could give small satellites far greater flexibility in space. Instead of relying on separate fuel systems for different types of maneuvers, future spacecraft…
Artificial intelligence systems can write essays, answer questions, and solve complex problems. But new research suggests they may struggle with something humans do every day: staying focused on the task at hand when distractions get in the way. Researchers led by Suketu Patel put several leading AI models through a…
A large international research team led by groups at Harvard Medical School and Princeton University has reached a major neuroscience milestone by publishing a complete map of every connection between neurons in the central nervous system of an adult fruit fly. The achievement gives scientists a new way to examine…
A widely used supplement marketed for joint pain relief may be linked to faster progression of Alzheimer’s disease, according to new research from the University of Florida. The study found that people with mild cognitive impairment who reported taking glucosamine were more likely to progress to dementia than those who…
A new study suggests that the earliest animals on Earth may have unintentionally slowed the rise of biodiversity. According to researchers from the University of Cambridge, the way these ancient organisms reproduced limited competition and kept evolution moving at a remarkably slow pace for millions of years. The findings, published…
Many people undergoing chemotherapy experience a frustrating side effect often called “chemo brain.” These cognitive changes can include trouble concentrating, memory problems, and difficulty juggling multiple tasks. According to researchers, as many as 80% of chemotherapy patients experience some degree of cancer-related cognitive impairment. Now, a Phase II clinical trial…
A new study suggests that eating more ultra-processed foods could make it harder to stay focused and may contribute to factors linked to dementia, even among people who otherwise follow healthy diets. Researchers from Monash University, the University of São Paulo, and Deakin University analyzed dietary and cognitive data from…
Millions of people worldwide live with obstructive sleep apnea, a common disorder that repeatedly interrupts breathing during sleep. New research in mice suggests that gut microbes and the compounds they produce may play a surprising role in protecting against some of the condition’s most serious consequences, including heart disease. The…
An ultraheavy particle may help explain one of the most puzzling mysteries in modern astrophysics: the origin of the most energetic particles ever detected. Ultrahigh-energy cosmic rays are particles from space that slam into Earth with energies far beyond anything produced by human-built particle accelerators. Among the most extraordinary examples…
The review confirms that tea, particularly green tea, plays a crucial role in preventing cardiovascular diseases (CVDs), obesity, diabetes, and certain types of cancer. Tea’s neuroprotective effects, ability to reduce muscle loss in seniors, and its anti-inflammatory and antimicrobial activities further highlight its potential health-promoting properties. However,…
A new study led by researchers at Curtin University offers fresh insight into one of Stonehenge’s most enduring mysteries: how a massive stone made its way across Britain to become part of the famous monument. The focus of the research is the Altar Stone, a six-ton sandstone megalith located at…
Chemicals introduced to help repair and protect Earth’s ozone layer may have created an unexpected environmental problem. According to a new study, some of the substances that replaced ozone damaging chemicals are now responsible for spreading large amounts of a persistent “forever chemical” across the globe. Researchers led by Lancaster…
Scientists have identified a previously unknown mechanism that may be helping cancers evade the immune system. The discovery centers on SLAMF6, a molecule found on the surface of immune cells that can prevent T cells from mounting a strong attack against tumors. In experiments involving mice, researchers also developed a…
The largest review ever conducted on opioid pain medications has found that these commonly prescribed drugs often offer only limited, short term relief for acute pain, and in some cases provide no meaningful benefit at all. Researchers from the University of Sydney led the investigation, which examined the effectiveness and…
Is there a massive undiscovered planet on the outer reaches of the Solar System? The idea has been around since before the discovery of Pluto in the 1930s. Labelled as planet X, prominent astronomers had put it forward as an explanation for Uranus’s orbit, which drifts from the path of…
NASA has released a new update on the ongoing air leak issue inside Russia’s Zvezda service module on the International Space Station, where cracks in a transfer tunnel have caused small atmospheric leaks since 2019. The affected area is known as the PrK transfer tunnel. NASA and Roscosmos have been…
A promising experimental compound developed by researchers at ETH Zurich could offer a new way to slow the progression of Alzheimer’s disease. In studies involving mice, the treatment reduced nerve cell loss, helped the animals live longer, and targeted a biological process that existing Alzheimer’s drugs do not address. The…
Whether you’re navigating a job interview, meeting someone for the first time, or responding to an unexpected challenge, success often depends on your ability to adjust your behavior. In some situations, adapting quickly can even be critical for survival. But how does the brain know when it’s time to abandon…
Few ideas in modern science have reshaped our understanding of reality more profoundly than space-time — the interwoven fabric of space and time at the heart of Albert Einstein’s theory of relativity. Space-time is frequently described as the “fabric of reality.” In some accounts, this fabric is referred to as…
Heat is something we encounter every day. A steaming cup of coffee gradually cools, a laptop warms up during use, and sunlight heats the Earth’s surface. Yet when heat is examined at distances far smaller than the width of a human hair, it can behave in unexpected ways. Researchers from…
For decades, small grooves on ancient human teeth were thought to be evidence of deliberate tool use – people cleaning their teeth with sticks or fibers, or easing gum pain with makeshift “toothpicks.” Some researchers even called it the oldest human habit. But our new findings, published in the American…
For more than 30 years, a remarkable collection of helmets recovered from the waters off Spain was believed to date back to Roman times. New research has now overturned that assumption, revealing that the artifacts are actually medieval and provide rare insight into the movement of weapons, trade, and military…
South Australia is home to a booming koala population, but researchers warn that this apparent conservation success could eventually turn into a serious problem. A new study has provided the first comprehensive estimate of koala numbers in the region and identified a humane, cost effective strategy to keep the population…
New research from Edith Cowan University (ECU) and the Danish Cancer Research Institute (DCRI) suggests that the source of nitrate in a person’s diet may play an important role in dementia risk. In a large study that followed more than 54,000 Danish adults for up to 27 years, researchers examined…
Large international studies have found that the kidney disease drug finerenone may benefit far more patients than current treatment guidelines recommend. Researchers reported that the medication helps protect kidney function, lowers the risk of cardiovascular complications, and improves survival in people with chronic kidney disease (CKD). The benefits were seen…
Androgenetic alopecia (AGA) is the most common type of hair loss, affecting millions of men and women around the world. It is often known as male or female pattern hair loss, and it usually develops gradually as hair follicles shrink over time. As follicles become smaller, they produce thinner, shorter…
A century old idea from Erwin Schrödinger has taken a major step forward, thanks to new research into how humans perceive differences between colors. A team led by Los Alamos scientist Roxana Bujack used geometry to build a mathematical definition of color perception based on hue, saturation, and lightness. Their…
Popular medications such as Ozempic, Wegovy, Mounjaro, and Zepbound may offer an unexpected benefit beyond helping people lose weight and manage diabetes. New research involving more than 110,000 women found that those taking GLP-1 drugs, a category that includes semaglutide-based medications like Ozempic and Wegovy, were significantly less likely to…
