Less than a tenth the size of an ant, a dust mite’s whole world is contained in the dusty film under a bed or in a forgotten corner. This realm is right under our noses, but from our perspective, the tiny specks of brilliant color blend together into a nondescript grey. What are these colorful microscopic particles?

Dust! Explore the world of skin cells, pollen, animal dander, sand, tiny hairs, human-made synthetic pollutants, and minerals from outer space in this science-filled TED-Ed by Michael Marder: What is dust made of?

Next: Satellite Tracks Saharan Dust to Amazon in 3-D, The Science of Skin, why do some people have seasonal allergies? and what is a comet made of?

Also: You Have Mites Living On Your Face.

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