Winter weather means more than sledding and snowmen. Next snowstorm, grab a magnifying glass and try snowflake hunting. Bullet rosettes, stellar plates and capped columns are just a few of the varieties of snow crystal you can find in your backyard. Kenneth Libbrecht, physicist at Caltech and snowflake expert, shares secrets of the snowflake. En Español.
Images courtesy of Kenneth G. Libbrecht. Music by Enrichment Center Percussion Ensemble. City snowflake assistance from Shelley Dubois. Produced by flora lichtman