New research reveals our understanding of dust’s role in the environment is far from settled.

Controlled experiments are impossible in astronomy, as are direct measurements of physical properties of objects outside our solar system. So how do astronomers know so much about them?

There’s a flurry of excitement every time a comet comes into view from Earth. But what are these celestial objects, and where do they come from?

Desert dust storms are increasingly picking up materials like sewage, herbicides and other human-made waste and transporting them on tiny particles that are easy to inhale.

Fifty years ago, the Salton Sea was a draw for boaters and fishermen; today it’s an ecological time bomb. Two water experts who served on a state review panel describe its proposed rescue plan.

New research reveals that the London Underground is polluted with small particles which may carry negative health effects for humans.

The first ever sound recording of a dust devil on Mars reminds us that there is a lot to learn about how they sculpt the landscape.

Atmospheric dust storms often follow wildfires and have serious impacts on human health and ecology.

The Centers for Disease Control has announced a new, stricter standard for lead poisoning in children, which will more than double the number of kids considered to have high blood lead levels.

Those directly exposed to toxic dust and trauma on and after 9/11 carry with them a generation of chronic health conditions, which are placing them at higher risk during the pandemic and as they age.