Each year, 50 million metric tons of African dust makes its way to the U.S. There's not much known about its impact on humans, plants and animals. Now scientists have developed a device that can fly through dust and provide answers.

Encoded with permission for digital streaming by Infobase on May 25, 2014. Learn360 is distributed by Infobase for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.

Tracking Dust From Around The World (2:00).