Electromagnetic noise can send migrating bats off course, with effects lasting hours

Chemical bonding is one of the central organizing principles of the microscopic world. It determines how atoms combine and thereby governs a wide range of physical and chemical properties of quantum systems across many length scales, ranging from small molecules and biomolecules to macroscopically large solid materials.

The universe is full of fascinating structures, and some of the most striking take shape inside the giant clouds where stars are born. There, streams of gas appear to converge from all directions toward a dense central hub, like spokes meeting at the center of a wheel.

Dogs with lower urine ammonia-to-creatinine ratios (UACR) may suffer from faster progression of kidney disease and higher fatality rates, according to new research from North Carolina State University. The work suggests that UACR levels may be a useful marker for identifying dogs that may benefit from certain kidney disease therapies.