The Basic Building Blocks Every Cloud Needs Clouds need two essential ingredients to form, and both must be present ...

The Conversation is asking kids to send in questions they'd like an expert to answer. Amanda, age 5, wants to know how clouds' shapes are made. An expert explains. I’m a meteorologist, and I’ve been ...

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 ...

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 ...

I’m a meteorologist, and I’ve been fascinated by weather since I was 8 years old. I grew up in Minnesota, where the weather changes from wind-whipping blizzards in winter to severe thunderstorms – ...

Have you ever asked yourself: How do clouds form? Why do they have different shapes? Why do some clouds rain and others just move on? What do I need to make a cloud? Can I make a cloud at home? Join ...