Discover how ice crystals and winter skies create sundogs, sun pillars and halos — and when to look up from the Nature Center ...

The ice in a domestic freezer is remarkably different from the single crystals that form in snow clouds, or even those formed on a frozen pond. As temperatures drop, ice crystals can grow in a variety ...

A Spanish scientist believes he has finally solved a longstanding mystery about ice that causes the different shapes ice crystals form.

Visual representation of the structure of low-density amorphous ice. Many tiny crystallites (white) are concealed in the amorphous material (blue). “Space ice” contains tiny crystals and is not, as ...