Scientists unveil a solid electrolyte that moves lithium as fast as liquids, promising safer, fast-charging batteries.

IN 1953 Lewis and Pratt 1 described violent spontaneous movements of the liquid-liquid interface which they observed during measurements of interfacial tension in the presence of mass transfer by the ...

The roots of Russia's invasion of Ukraine go back decades and run deep. The current conflict is more than one country fighting to take over another; it is — in the words of one U.S. official — a shift ...