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Cosmic "touchdown airbursts" -- explosions of comets or asteroids above Earth's surface -- may be far more common and destructive than previously thought, according to new research. Unlike crater-forming impacts, these events unleash extreme heat and ...

Gravitational waves from black holes may soon reveal where dark matter is hiding. A new model shows how dark matter surrounding massive black holes leaves detectable fingerprints in the waves recorded by future space observatories.

Astronomers have detected spacetime itself being dragged and twisted by a spinning black hole for the first time. The discovery, seen during a star's violent destruction, confirms a prediction made over 100 years ago and reveals new clues about how . ...

Much of the western U.S. is overdue for wildfire, with decades of suppression allowing fuel to build up across millions of hectares. Researchers estimate that 74% of the region is in a fire deficit, meaning far more land needs to burn to restore ...

Researchers have uncovered that the body uses different molecular systems to sense cold in the skin versus internal organs. This explains why surface chills feel very different from cold experienced deep inside the body.

Scientists have discovered that T cell receptors activate through a hidden spring-like motion that had never been seen before. This breakthrough may help explain why immunotherapy works for some cancers and how it could be improved for others.

After a decade of painstaking measurements, scientists have delivered a major plot twist in particle physics: a long-hypothesized "mystery particle" likely doesn't exist. Using the MicroBooNE experiment at Fermilab, researchers analyzed neutrinos ...

Traces of opium found inside an ancient alabaster vase suggest drug use was common in ancient Egypt, not rare or accidental. The discovery raises the possibility that King Tut's famous jars once held opiates valued enough to be buried with pharaohs- ...

AI tools designed to diagnose cancer from tissue samples are quietly learning more than just disease patterns. New research shows these systems can infer patient demographics from pathology slides, leading to biased results for certain groups. The .. ...

Researchers have identified a previously overlooked protein that helps regulate appetite and energy use in the body. This "helper" protein supports a key system that decides whether the body burns energy or stores it, and when it does not function .. ...