Scientists Discover New Room-Temperature Ice Form in X-Ray Laser Experiments

TL;DR
Scientists discovered a new phase of ice, called ice XXI, that forms at room temperature under extreme pressure using an X-ray laser experiment, suggesting more unknown ice phases could exist on icy planets and moons.
- Ice That Freezes at Room Temperature Discovered in X-Ray Laser Experiment ScienceAlert
- Multiple freezing–melting pathways of high-density ice through ice XXI phase at room temperature Nature
- Scientists Discover a New Form of Ice That Shouldn’t Exist SciTechDaily
- Scientists discover new form of ice that freezes at room temperature The Brighter Side of News
- World’s most powerful X-ray laser reveals unusual ice forms at room temperature Interesting Engineering
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