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Phys.org / In seconds, fiber optic cables detect earthquake size

Scientists have discovered a new way to determine how big an earthquake may become just seconds after it begins. In a new study published in Nature Communications, researchers from the U.S. Geological Survey (USGS) and Cal ...

Jul 29, 2026
Phys.org / More evidence Mars once had water emerges from old Spirit rover data

More than 20 years after NASA's Spirit rover landed on Mars, a researcher from Edith Cowan University (ECU) has uncovered new evidence that suggests water may once have covered large parts of the red planet.

Jul 28, 2026
Medical Xpress / Long COVID and immune 'soldier' cells: Q&A

Extreme fatigue, a racing pulse, shortness of breath, brain fog, aching joints—the symptoms of long COVID can vary widely, change unpredictably and be difficult to recognize as signs of the condition. Long COVID also remains ...

Jul 31, 2026
Medical Xpress / Team success can hide individual mistakes

Is failure necessary for learning? In many cases, yes. Scientists have long known that success can reduce how much people learn from their mistakes. But what happens in a team setting, where outcomes depend on more than one ...

Jul 31, 2026
Phys.org / Chicxulub's lingering dust may have turned falling debris into a global firestorm

Sixty-six million years ago, the six-mile-wide (10-kilometer-wide) Chicxulub asteroid crash-landed in Mexico's Yucatán Peninsula and changed life on Earth forever. The reign of the dinosaurs ended, and only creatures that ...

Jul 28, 2026
Phys.org / A mechanically tunable molecular switch for circularly polarized light emission

Over the past few decades, scientists have become increasingly interested in developing materials that do not simply withstand mechanical forces but instead respond to them in useful, detectable ways. For example, it is now ...

Jul 29, 2026
Phys.org / Mosquitoes are rapidly activating enzymes against common insecticide, researchers warn

Traditionally, public health programs have relied on chemicals for mosquito management, which may be why combating mosquitoes is becoming more difficult. Over time, insecticides trigger biochemical and genetic variations ...

Jul 29, 2026
Phys.org / Flexible DNA directs proteins into atomically ordered crystals, overturning crystallization assumptions

For decades, scientists have largely relied on painstaking trial and error to coax proteins into crystalline forms. Crystallization enables scientists to determine the molecular structures of proteins, which can provide a ...

Jul 29, 2026
Phys.org / Trees and microbes team up to improve nitrogen nutrient processes in higher CO₂ conditions

Forest trees growing in air containing higher levels of carbon dioxide (CO2) radically change the way they "cycle" nitrogen, a key plant nutrient, with implications for forests as a nature-based climate solution.

Jul 29, 2026
Medical Xpress / Will dietary fiber help digestion? It might depend on your gut bacteria

Doctors recommend dietary fiber for healthy digestion, but to benefit from it, people not only need specific species of gut bacteria but also the right strains of those bacteria to process the starches, according to a new ...

Jul 27, 2026
Tech Xplore / Waste-based geopolymer mortar offers greener, fire‑resistant alternative to conventional concrete

Concrete ranks second among the most widely used materials on the planet and is regarded as highly versatile for climate-resistant infrastructure. However, the main ingredient of concrete is Portland cement, which is made ...

Jul 28, 2026
Medical Xpress / Gluten-free diet reshapes gut bacteria after celiac diagnosis in children

Celiac disease is an autoimmune condition triggered by gluten that affects 1% to 3% of people globally and is caused by a mix of known genetic factors and unknown environmental ones.

Jul 31, 2026