Accurately modeling irregularly-shaped particles isn’t easy, but a new study found a way to improve a century-old idea.

Aug. 18 (UPI) --All respiratory viruses are airborne, including influenza and the new coronavirus that causes COVID-19-- but the how remains a point of contention among scientists. While most ...

Dust. In your home, it’s a hassle. On the moon, it can be downright hazardous. The weak gravity of the lunar surface makes it easy to kick moon dust up into floating clouds. Particles are clingy and ...

Rasoul Ali Ashrafipour, the director of the Tehran Provincial Directorate of Environment Protection, said on Tuesday that the air pollution had reached an "alarming" level, warning about an imminent ...