News
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PhysicsMisbehavin’ Meson: Perplexing particle flouts the rules
The discovery of what appears to be a new subatomic particle with bizarre properties is challenging theorists' understanding of how matter behaves.
By Peter Weiss -
AnimalsHot Bother: Ground squirrels taunt in infrared
California ground squirrels broadcast an infrared signal when confronting a rattlesnake.
By Susan Milius -
Sleepy brains take learning seriously
After people practice a hand-eye coordination task, electrical activity in specific areas of the brain during sleep reflects neural processes involved in learning to perform that task better.
By Bruce Bower -
PhysicsNew pass at neutrino mass
The first experiment to create neutrinos in an accelerator and then beam them a long distance has found a long-awaited, new form of evidence that those fundamental particles weigh something.