When you pop a tray of water into the freezer, you get ice cubes. Now, researchers from the University of Colorado Boulder and the University of Toronto have achieved a similar transition using clouds of ultracold atoms.
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2019/turningwater.jpg)
Source:
https://phys.org/news/2019-08-ice-quantum-realm.html