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Making babies in space may be more complicated than expected, as new research shows sperm struggle to navigate in microgravity. Scientists found that while sperm can still swim normally, they lose their sense of direction without gravity, making it . ...

Far beneath the ocean near Japan, scientists have discovered that the magma system linked to the most powerful eruption of the Holocene is slowly rebuilding. By using seismic imaging, researchers mapped a large magma reservoir under the Kikai caldera ...

Scientists have finally found a hidden "critical point" in supercooled water that explains why it behaves so strangely. At this point, two different liquid forms of water merge, triggering powerful fluctuations that affect water even at normal ...

A team of physicists set out to test some of the most exciting claims in quantum computing--and found a very different story. Instead of confirming breakthroughs, their careful replication studies revealed that signals once hailed as major advances . ...

Scientists have discovered that the ocean's "missing" plastic hasn't vanished--it has broken down into trillions of invisible nanoplastics now spread through water, air, and living organisms. These tiny particles may be everywhere, including inside . ...

After a stroke, the brain may do something surprisingly hopeful--it can "refresh" parts of itself. Researchers analyzing brain scans from over 500 stroke survivors found that while the damaged side of the brain appears to age faster, the opposite, .. ...

A major new U.S. cholesterol guideline is shifting the focus toward earlier, more personalized prevention of heart disease. It urges people to start screening sooner--sometimes even in childhood--and highlights the importance of tracking not just LDL ...

What teens eat might matter more for their mental health than previously thought. A sweeping review of nearly 20 studies found that healthier diets are often linked to fewer depressive symptoms, while poor eating habits may go hand in hand with ...

Nicotine e-cigarettes may be one of the most effective tools yet for quitting smoking, according to a sweeping review of global research. By analyzing findings from 14 major reviews spanning nearly a decade, researchers found consistent, high-quality ...

Scientists have created a microscopic QR code so tiny it can only be seen with an electron microscope--smaller than most bacteria and now officially a world record. But this isn't just about size; it's about durability. By engraving data into ultra . ...