You know those stunningly symmetrical, glittery snowflakes you see everywhere at a certain time of year -- hanging from streetlights, stitched on sweaters, and sprinkled all over tv? Those perfectly-etched pictures are all a big lie. Latif Nasser explains how it all began in a cold, snowy ...

We find out about the physics and chemistry of snow and what conditions we’ll need to have it with Dr. Kenneth Libbrecht, a professor of Physics at Caltech.