A new report estimates that 95 percent of people live in areas with dangerously high levels of fine particulate matter such as dust and soot.

The fungal and bacterial communities in household dust can reveal some details about a building’s inhabitants.

Dust-borne bacteria from houses with dogs can prevent allergies in mice by changing their gut microbes.

NASA scientists are closely watching a dust storm on Mars that threatens to go global and interfere with rovers on the planet’s surface.

Mice become immune to a virus associated with childhood asthma when exposed to dust from homes that have dogs.