Add Yahoo as a preferred source to see more of our stories on Google. New simulations show ice stays slippery in deep cold because its crystal structure breaks down under motion, not because it melts.

There are somewhere between 20 and 74,963 forms of ice because water can do all kinds of weird stuff when it freezes. So far, scientists have experimentally determined the crystal structures for 19 ...

Making ice requires more than subzero temperatures. The unpredictable process takes microscopic scaffolding, random jiggling and often a little bit of bacteria. We learn in grade school that water ...

Chances are that all your encounters with frozen water—while trudging through slushy winter streets, perhaps, or treating yourself to cool summer lemonades—have been confined to one structural form of ...