Florida bill would create hotline for people to report chemtrails. Bill sponsor Sen. Ileana Garcia also filed a bill to ban ...

For clouds and precipitation to develop, tiny airborne particles known as cloud condensation nuclei are required for water vapor to condense and form cloud droplets. But what are the origins of ...

During spring and summer, we are more likely to get clouds that are born on rapidly rising thermals of moist air.

Rainfall triggers bursts of natural nanoparticles, which contribute to cloud formation and additional precipitation over the ...

Contrails are human-made clouds. They are streams of condensation left behind from airplanes and rockets. Exhaust leaves water vapor that freezes into tiny crystals in the cold troposphere.