Alzheimer's Breakthrough: Lithium Reverses Memory Loss in Mice - ScienceAlert

Scientists have proposed what they believe is the first way to detect "mirror life," a hypothetical form of life built from molecules that are reversed versions of those found in living organisms on Earth. Researchers from the University of Strathclyde and Durham University have developed a proposed detection technique that uses molecules capable of emitting light with distinct left and right-handed properties. By analyzing these light signals, scientists may eventually be able to distinguish conventional organisms from their mirror-image counterparts. Although mirror life does not currently exist, some experts consider its potential creation a serious biological safety concern. These artificial organisms could behave in unpredictable ways when interacting with Earth's ecosystems and might evade certain natural defenses that protect people, animals, and plants. The likelihood of mirror life emerging is considered low, but its possible consequences could be severe enough to justify developing detection methods in advance.

Researchers at the University of Vermont have discovered a surprising pattern in human language that challenges a scientific theory widely accepted for more than 70 years. Their findings suggest that the meaning of words is shaped by something more fundamental than emotion: our understanding of power, danger, and order. The study, published in Science Advances, introduces a new approach called "ousiometrics," which uses mathematical methods to measure the essential meaning of language. Its most striking finding is that the words people use show a consistent and widespread preference for safety over danger.

Location of caves where speleothems were recovered. Credit: Nature (2026). DOI: 10.1038/s41586-026-11166-3 In places like South Asia, Africa and parts of the Americas, monsoon rains supply water for drinking, crops and hydropower for billions of people. Understanding the patterns that monsoons tend to follow can help people plan for drought risks affecting agriculture, reservoirs and hydropower across distant regions.

Scientists have proposed what they believe is the first way to detect "mirror life," a hypothetical form of life built from molecules that are reversed versions of those found in living organisms on Earth. Researchers from the University of Strathclyde and Durham University have developed a proposed detection technique that uses molecules capable of emitting light with distinct left and right-handed properties. By analyzing these light signals, scientists may eventually be able to distinguish conventional organisms from their mirror-image counterparts.

When we think of rivers, we imagine water flowing freely from source to sea. But for some of the world's great waterways, their natural state is to be blocked or dammed by fallen trees – on a massive scale. Today, the world's largest tree-blockages or logjams can be found in the delta of Canada's mighty Mackenzie River. . While the word 'logjam' is a byword for life's annoying obstacles, recent studies have shown that river logjams are vital for wildlife and human communities, and are crucial stores of carbon.

An artist's illustration of the new theropod dinosaur, Invictibellatrix amberina (center of the image), in its ecosystem on the Isle of Wight, United Kingdom, in the Early Cretaceous (around 120 million years ago). It lived in what was likely a seasonally wet-to-dry floodplain environment and is surrounded by other dinosaurs including large long-necked rebbachisaurid sauropods (directly behind Invictibellatrix, center) and relatives of Iguanodon (right). A spinosaurid theropod, potentially the apex predator of the time, fishes (left). Invictibellatrix has just caught and is consuming two small mammals. Gymnosperms dominate the environment as flowering plants (angiosperms) were not common at this time. Other reptiles including relatives of modern lizards, crocodiles and turtles enjoy the warm Early Cretaceous weather of the U. K. Credit: Sergey Krasovskiy and Pedro Salas The fossilized skull of a new species of mysterious meat-eating dinosaur from the Isle of Wight has been rediscovered in the collections of the Natural History Museum after over 100 years in storage.