Scientists Discover Plastic Ice VII, Potentially Found on Alien Worlds

Scientists have experimentally observed plastic Ice VII for the first time, an exotic phase of water theorized to exist on distant exoplanets and icy moons. This unique form of ice requires extreme conditions, specifically pressures up to 6 gigapascals and temperatures of 327°C, to form a distinct interwoven cubic structure where hydrogen atoms exhibit unusual movement. Researchers used quasi-elastic neutron scattering (QENS) to track the dynamic behavior of the hydrogen atoms, revealing that they move in a staggered manner rather than freely, as previously assumed. The discovery, published in Nature, enhances our understanding of water's behavior under extreme conditions and could provide insights into the internal structures of ocean worlds beyond Earth. Maria Rescigno from Sapienza University noted the significance of QENS in exploring such exotic phase transitions. This breakthrough not only confirms prior theoretical predictions but also expands the possibilities for future exploration of celestial bodies.