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As the immune system weakens with age, scientists have found a way to restore some of its lost strength. By delivering mRNA to the liver, they created a temporary source of immune-boosting signals that normally come from the thymus. Older mice ...

The Arctic is changing rapidly, and scientists have uncovered a powerful mix of natural and human-driven processes fueling that change. Cracks in sea ice release heat and pollutants that form clouds and speed up melting, while emissions from nearby . ...

Researchers have created a protein that can detect the faint chemical signals neurons receive from other brain cells. By tracking glutamate in real time, scientists can finally see how neurons process incoming information before sending signals ...

After the January 2025 LA wildfires, hospitals recorded a surge in serious health problems. Emergency visits for heart attacks, lung illness, and general sickness rose sharply in the following three months. Researchers believe fine particles from ...

A new catalyst design could transform how acetaldehyde is made from renewable bioethanol. Researchers found that a carefully balanced mix of gold, manganese, and copper creates a powerful synergy that boosts efficiency while lowering operating ...

MIT researchers have designed a printable aluminum alloy that's five times stronger than cast aluminum and holds up at extreme temperatures. Machine learning helped them zero in on the ideal recipe in a fraction of the time traditional methods would ...

Mars isn't just dusty--it crackles with electricity. Scientists discovered that dust devils can generate tiny electric sparks, captured for the first time by Perseverance's microphone. These static discharges may rapidly destroy chemicals like ...

A major breakthrough in battery science reveals why promising single-crystal lithium-ion batteries haven't lived up to expectations. Researchers found that these batteries crack due to uneven internal reactions, not the grain-boundary damage seen in ...

Scientists have uncovered ancient wolf remains on a small Baltic island where wolves could only have been brought by humans. These animals weren't dogs, but true wolves that ate the same marine food as the people living there and showed signs of ...

ADHD stimulants appear to work less by sharpening focus and more by waking up the brain. Brain scans revealed that these medications activate reward and alertness systems, helping children stay interested in tasks they would normally avoid. The drugs ...