NASA's vivid simulation shows how sea salt, dust, smoke, and sulfates from pollution and volcanoes spread across thousands of ...

A striking new NASA visualisation shows how tiny airborne particles, or aerosols, travel thousands of miles, affecting air ...

A repost from 2016, written by Henrik and part of our series on volcanoes of the American west. There is enough there to make any nation proud! This follows on from the post on Mount Shasta and on ...