Cirrus clouds exist at much higher altitudes (usually above 18,000 feet or so) and much colder temperatures. They are typically composed of tiny ice crystals instead of water droplets and often ...

Cirrus are very high clouds, usually 20,000 to 30,000 feet above the ground, where the temperature is well below freezing.

The radiative climate and environmental effects of cirrus clouds is an international cutting-edge field of scientific research in the atmospheric sciences. Understanding how the characteristics of ...

Cirrus clouds exist at much higher altitudes (usually above 18,000 feet or so) and much colder temperatures. They are typically composed of tiny ice crystals instead of water droplets and often ...

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.

Cirrus clouds at the level of the jet stream – often about 10km above the ground – can sometimes move at more than 320km/h. But because they are so high up, it’s often hard to tell how fast ...

Most clouds fit under four core categories: to the cirrus, cumulus, stratus, and nimbus. However, nacreous clouds are a cool phenomenon worth seeing.

How are clouds’ shapes made? A scientist explains the different cloud types and how they help forecast the weather. Just4Kids.

These cirrus clouds are at the highest levels and reaching heights of 23,000 to 40,000 feet above the surface of the Earth. The cumulus clouds are usually in the lower portions of the atmosphere ...

On a morning horizon in May, the Odyssey spacecraft caught a stunning glimpse of one of the planet's largest volcanoes peeking out above a canopy of clouds. Known as Arsia Mons, the volcano dwarfs ...

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.

Cirrus clouds at the level of the jet stream – often about 10km above the ground – can sometimes move at more than 320km/h. But because they are so high up, it’s often hard to tell how fast ...