Thursday, January 19, 2017


The more rounded structures in these snowflakes are caused by riming, which is when thousands of tiny droplets in clouds coat a snowflake to create a pellet known as graupel.
These fluffy snowflakes, known as aggregates, form when snow crystals collide with other snow crystals. Many of these flakes also show some riming, or an icy coating. A new high-speed, three-camera system developed at the University of Utah made these pictures as the snowflakes fell.
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