Rain clouds tend to form no more than 10 miles up, but the noctilucent clouds, composed of water-ice, hover some 50 miles above the planet's surface in a layer of the atmosphere known as the ...

With an understanding of how clouds are made, we know that they consist of a large amount of small water droplets, tiny ice crystals, or both. These components have mass, so it only makes sense ...

How Are Clouds’ Shapes Made? Explore the diverse world of cloud formations, from ground-level fog to high-flying cirrus ...

Scientists at the Harvard-Smithsonian Center for Astrophysics are leading a major part of NASA’s new SPHEREx mission to study ...