Tiny particles floating in our air.

This visualization shows how tiny particles called aerosols move through Earth’s atmosphere from August 1 to September 14, 2024, using NASA’s Goddard Earth Observing System (GEOS) model. These particles, which include sea salt, dust, smoke,… pic.twitter.com/ifLbtSWIFB

— NASA Ames (@NASAAmes) August 26, 2025