Early risers in Texas saw something a little bit unusual earlier this week. A rare display of “meteor smoke clouds” — ...

In 1880, without knowledge of the earlier work of Coulier, Aitken discovered the nuclei of cloudy condensation in the atmosphere. For nearly forty years he continued to make observations on these ...

Atmospheric aerosol particles are essential for the formation of clouds and precipitation. A new study reveals that rainfall ...

Artificial rain, which is also interchangeably used with cloud seeding, is a method of weather modification that uses ...

Quantitative fit testing is the preferred testing method. The ambient aerosol condensation nuclei counting (CNC) method, using a Portacount® Plus instrument, has been selected as the quantitative fit ...

Although hydrogen combustion produces no soot, which in current jet fuel provides the condensation nuclei for the ice crystals at the heart of contrails, it generates 2.5 times more water vapor.