Nacreous clouds, or ice polar stratospheric clouds, are a rare type of cloud that forms in very cold conditions and at high altitudes. They are known for their iridescent colors, which are created ...

At the top of Mt. Helmos in Greece, researchers from more than 12 European countries, including Aarhus University, hope to learn more about how clouds are formed and changed. The final goal is to make ...

Have you ever looked up at the clouds in the sky and wondered how they form? Understanding cloud formation is really important for studying weather patterns and making accurate forecasts. Those clouds ...

Answer: Clouds form when sufficiently moist air is cooled to the dew point temperature of the air or below, so that either liquid water droplets form on cloud condensation nuclei, or in the case of ...

TOLEDO, Ohio — Clouds are one of the fundamentals of how weather works across the world. From shelf clouds to funnel clouds, each is unique and has scientific explanations as to how it is formed and ...

An interesting phenomenon unfolded Monday in the sky over Houston as nearly perfect rows of clouds were spotted. Video submitted to us by a subscriber showed the unmistakable appearance of what are ...

PHOENIX — Have you seen clouds that look like something from another world? No, it's not aliens or UFOs, there is a scientific explanation for these cloud formations that look like flying saucers.

When volcanic eruptions send towering plumes of ash into the atmosphere, they don’t just darken the sky or affect local air quality. New research shows that these eruptions can actually trigger the ...

Is it a flying elephant? A gingerbread man? When I was little, I used to search the clouds for amusing shapes as they drifted across the sky and imagine stories about their patterns. Now I'm a ...

LIVERMORE, Calif. — An astronomer from the Lawrence Livermore National Laboratory, in collaboration with an international team of researchers, have discovered that a neighboring galaxy — the Large ...