Science, engineering, and discovery — the research and breakthroughs that matter.

Respiratory infectious diseases and air pollution remain persistent global health challenges. Yet the tools used to monitor airborne threats are often expensive, power-hungry and difficult to deploy outside laboratories.

Iron is essential. Our cells need it to produce energy, carry oxygen throughout the body and power countless chemical reactions that sustain life. But this metal has a dark side. When too much of it is left free inside cells, it can trigger destructive reactions that break down D

Whether on lunch break or on the clock, many employees scroll through the news and social media during the workday. Researchers found that employees who "doomscroll" at work suffer hidden costs that extend beyond lost productivity.

Women who used estrogen-only hormone therapy later in life were less likely to develop dementia and showed fewer signs of Alzheimer’s disease in their brains, according to a large study of more than 21,000 participants. Hormone therapy use was linked to 39% lower odds of a dement

Meteorites provided a rare but ready source of iron for ancient Bronze Age cultures before smelting became common. A new study, published in the Journal of Archaeological Science, sheds light on how the ancient Minoan and Mycenaean elite used this extraordinary metal and when its

Teens are turning to AI chatbots for emotional support—here's how to keep kids safe and more — today's student signal.

It's 2 a.m., and a teenage girl, worrying about an issue with a friend, lies awake. Rather than wake her parents, she picks up her phone, opens an AI app and types, "I'm so stressed out, I can't sleep."

There's good news and bad news for folks who love a good coat of ice on the Great Lakes for the activities and businesses it supports. The good news is that, after decades of declining annual average ice cover, there's reason to believe that trend could slow or even temporarily r

Kids, marriage and commute: A study co-authored by Dr. Mariana Macedo of Constructor University provides new insights into how major life transitions alter how individuals navigate and experience urban environments. Published in npj Complexity, the research challenges traditional

Climate change and biodiversity loss require us to base our decisions on the best possible knowledge. Yet a new study conducted by Dr. Roxana Roos at the University of Bergen shows that valuable knowledge about local nature and climate conditions often does not become part of the

A simple flame-synthesis method can produce highly active catalysts for converting carbon dioxide into methane, as reported by researchers from Science Tokyo. The team used flame-assisted spray pyrolysis to manufacture nickel–cerium oxide catalysts with finer nanoparticles and mo

An international team of researchers from Belgium, France, Switzerland, Spain and the U.S. has reconstructed the evolution of body mass in carnivorous mammals during the Paleogene—a crucial window in the diversification of mammals that followed the extinction of dinosaurs. This w

Madison researchers recognize a new species of baobab tree, Adansonia bozy, unique to Madagascar, according to a study published in the journal Taxon. Previously, members of A. bozy were classified within a different species of Malagasy baobab, Adansonia za.

A medieval monastery complex, long believed to be lost, has now been identified using ground-penetrating radar (GPR) in Roskilde, Denmark. The investigations have uncovered extensive and well-preserved remains of the St Clare's Convent from the 13th century, approximately 1 meter

The United States could exhaust its domestic phosphorus supply within 40 years. Europe, Latin America and Southeast Asia already depend on imports from China and Morocco to meet their needs. Without phosphorus, crops cannot grow—and without a reliable supply of the mineral, the w

When it comes to compounding natural hazards like landslides, wildfires, flooding and extreme heat, where you live makes all the difference. New research from Portland State University underscores this disproportionate reality, finding that in Portland, the areas most vulnerable

Respiratory infectious diseases and air pollution remain persistent global health challenges. Yet the tools used to monitor airborne threats are often expensive, power-hungry and difficult to deploy outside laboratories.

Iron is essential. Our cells need it to produce energy, carry oxygen throughout the body and power countless chemical reactions that sustain life. But this metal has a dark side. When too much of it is left free inside cells, it can trigger destructive reactions that break down D

A tiny UK-developed satellite, roughly the size of a small carry-on suitcase, could help answer one of the biggest questions in cosmology: What happened during the roughly 150 million years of the cosmic dark ages, before the universe's first stars appeared?

Scientists often describe life as a series of chemical reactions. Pallav Kosuri, Ph.D., describes life as movement. Chemical reactions are how you drive the movement of atoms, proteins, cells and bodies—without movement, there is no life.

Three factors—spectacular images, a high death toll and strong personal ties—make it more likely that the media in one country will report on a natural disaster in another, according to a study by the University of Bonn, the University of Warwick and Imperial College London, whic

The Huashan rock art landscape in southern China, close to the border with Vietnam, is a remarkable UNESCO World Heritage site. Thousands of images are painted on river cliffs across more than 80 locations stretching 260 kilometers (162 miles). They depict people, musical instrum

Salt and sugar from the sea can rise as far as the free troposphere, thereby influencing both cloud formation and the Arctic climate. This is the finding of balloon measurements carried out by a team of researchers on Spitsbergen in autumn 2021 and spring 2022.

Scientists have discovered that the aging human brain may be far less isolated from the rest of the body than once believed. Stanford researchers found that large numbers of immune cells from the blood begin entering the brain as early as middle age, where they can transform into