The Outside Story explores how ice forms from seeds and the various shapes it can take as it accumulates through winter.

Water may appear simple but behaves in ways that surprise even the world’s greatest scientists. A new international study has discovered that if it is put under extreme pressure—even at room ...

Ice cream comes in many different flavors. But even pure ice, which consists only of water molecules, has been discovered to exist in more than 20 different solid forms or phases that differ in the ...

Water is one of the simplest molecules known to science, yet it continues to surprise researchers. Under normal conditions, it freezes into the familiar form of ice that floats on lakes and rivers.

Scientists have created a new phase of ice that can form at room temperature. As detailed in a new paper published in the journal Nature Materials, the new phase, dubbed XXI, requires extreme levels ...