The surface of ice is a slippery subject. For more than 160 years, scientists have been debating the quirks of ice’s exterior. Frozen water is coated in a layer of molecules that behave like a liquid.

Water, though familiar, still hides astonishing secrets. When squeezed into nanosized channels, it can enter a bizarre ...

Green light means “go.” That might apply to evaporating water molecules too. Visible light, especially that of a greenish hue, might spur water to evaporate, researchers report in the Nov. 7 ...