Exotic "Ice VII" May Form on Ocean Worlds

Ice VII (or "ice-seven") is an exotic form of ice that grows so rapidly it could, under the right conditions, freeze an ocean-world's worth of water in just a few hours. A team of researchers from Lawrence Livermore National Laboratory (LLNL) has recently uncovered the unusual process by which that freezing takes place. Their results were published in the American Physical Society's journal Physical Review Letters. Foreground: An artistic representation of a shock wave experiment on water that l...