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Even when Earth was locked in its most extreme deep freeze, the planet's climate may not have been as silent and still as once believed. New research from ancient Scottish rocks reveals that during Snowball Earth -- when ice sheets reached the ...

For the first time, deadly H5N1 bird flu has been confirmed as the cause of a wildlife die-off in Antarctica, killing more than 50 skuas during the 2023-2024 summers. Researchers on an Antarctic expedition found the virus ravaging these powerful ...

Deep inside a nearby galaxy cloaked in thick clouds of gas and dust, astronomers have uncovered a surprising treasure trove of organic molecules using the James Webb Space Telescope. Peering through the cosmic veil in infrared light, researchers ...

A simple brain-training program that sharpens how quickly older adults process visual information may have a surprisingly powerful long-term payoff. In a major 20-year study of adults 65 and older, those who completed five to six weeks of adaptive . ...

Three major reviews commissioned by the World Health Organization find that GLP-1 drugs including tirzepatide (sold as Mounjaro and Zepbound), semaglutide (Ozempic and Wegovy), and liraglutide (Victoza and Saxenda) can lead to substantial weight loss ...

Life may have started in sticky, rock-hugging gels rather than inside cells. Researchers suggest these primitive, biofilm-like materials could trap and concentrate molecules, giving early chemistry a protected space to grow more complex. Within these ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS--only the third known interstellar comet ever spotted. When scientists turned NASA's Swift Observatory toward it, they caught the ...

Avian malaria is spreading across Hawaii in a way scientists didn't fully grasp until now: nearly every forest bird species can help keep the disease alive. Researchers found the parasite at 63 of 64 sites statewide, revealing that both native ...

A distant star system with four super-sized gas giants has revealed a surprise. Thanks to JWST's powerful vision, astronomers detected sulfur in their atmospheres -- a chemical clue that they formed like Jupiter, by slowly building solid cores. That ...

Depression in older adults may sometimes signal the early stages of Parkinson's disease or Lewy body dementia. Researchers found that depression often appears years before diagnosis and remains elevated long afterward, unlike in other chronic ...