Water moves between pools through evaporation into water vapor, transport through the atmosphere, condensation to form clouds, and returns to the surface as precipitation. At its core, the water cycle ...

While rainfall in the tropics can start though a process called coalescence (water droplets clinging to one another), our rain is primarily from what we know as the cold-cloud process. That's a ...

New research shows rice seeds can sense the sound of rain and grow faster. Raindrops create pressure waves that trigger ...