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Phys.org / Plants evolved distinct functions for two forms of a fundamental signaling molecule, study shows
The molecule cAMP, which plays essential roles in mammalian cells, is less well understood in plants. In a new Science Advances paper, researchers from the Institute of Science and Technology Austria (ISTA) and international ...
Science X / The root of the problem: Ancient trees may have grown their roots backwards
Secrets about how giant trees grew in reverse can be found in fossil imprints of their roots. Micro-CT scanning shows that the roots were growing tip-to-tail like shoots.
Medical Xpress / Ultrasensitive test detects biomarkers for specific form of dementia
Dementia affects over 57 million people worldwide, a number expected to nearly double in the next 20 years. This permanent loss of cognitive abilities affects daily function and can be caused by multiple brain pathologies, ...
Tech Xplore / 'I'm not sure'—AI finally learns three words that could make its biggest mistakes far less dangerous
A new approach has been proposed to address the problem of "overconfidence"—one of the most critical risks of artificial intelligence (AI) in areas such as autonomous driving and medical diagnosis, where AI shows high confidence ...
Phys.org / Plants survived the dinosaur-killing asteroid by duplicating genomes, study suggests
When an asteroid as big as Mount Everest struck Earth 66 million years ago, it wiped out all non-avian dinosaurs and roughly a third of life on the planet. But many plants survived the devastation. In a new study published ...
Medical Xpress / New post-hoc analysis examined daily oral orforglipron in adults over 65 with obesity, with or without diabetes
A new analysis presented at the European Congress on Obesity (ECO 2026, Istanbul, Turkey, 12–15 May) examined daily oral orforglipron treatment for the treatment of obesity, with or without diabetes, in users aged 65 years ...
Phys.org / Vast atmospheric waves on Venus are caused by largest known 'hydraulic jump'
The mysterious origin of an impressive cloud disturbance on Venus has now been revealed by a team including the University of Tokyo. Researchers used numerical models to show that an enormous 6,000-kilometer-wide atmospheric ...
Phys.org / J1152 is an unusual long-period dwarf nova with recurring eclipses, observations find
Astronomers from the South African Astronomical Observatory (SAAO) and elsewhere have conducted photometric and spectroscopic observations of a cataclysmic variable system designated SRGA J115215.0−510656. Results of the ...
Medical Xpress / Using the body's own sounds to diagnose Alzheimer's and Parkinson's before the first symptoms appear
Long before the telltale signs of Parkinson's disease appear, including tremors and muscle stiffness, there are other, more subtle signs of the disease.
Phys.org / 2026 global report shows retailers still falling short on sustainable chocolate
A global report into the chocolate industry has found that while some companies are improving their sustainability practices, many retailers are still failing to ensure transparent and accountable cocoa supply chains that ...
Phys.org / Astronomers map lifetime of over 100,000 molecular clouds across 66 galaxies
An international team of astronomers has analyzed the data from the James Webb Space Telescope (JWST) and Atacama Large Millimeter/submillimeter Array (ALMA) to investigate giant molecular clouds in nearby galaxies. The new ...
Phys.org / No trees, no fans: surviving extreme heat in India's salt pans
India faces challenging heat waves each year, but few places endure conditions as searing as the country's western desert salt pans, where workers rely on simple techniques to survive almost unbearable temperatures.
