An international team of researchers from University College Dublin (UCD) and University of Saskatchewan, Canada, have observed 'proton-hopping' movement in a high-pressure form of ice (Ice VII lattices). Ordinary water ice is known as Ice I, while Ice VII is a cubic crystalline form of ice which can be formed from liquid water above 3 GPa (30,000 atmospheres) by lowering its temperature to room temperature, or by decompressing heavy water (D2O) Ice VI below 95 K. Ice VII has a simple structure of two inter-penetrating, and effectively independent, cubic-ice sub-lattices, and is stable across a wide-ranging region above 2 GPa....