Molecule by molecule, a snowflake grows and eventually begins to fall. A scientific look at the amazing nature of snowflakes and snow.
Nature begins forming patterns at the molecular level – and sometimes they grow to enormous sizes.
Scientists are looking for safe new ways to prevent ice from damaging food in frozen storage, which costs consumers billions of dollars a year in wasted food.
New research shows that permafrost contains huge amounts of particles that make it easier for cloud moisture to freeze. Thawing permafrost is releasing these ice-nucleating particles.