It's kind of a zig zig. Look them up and you'll see.
The materials that make up noctilucent clouds are tiny water Ice crystals and dust particles.
Noctilucent clouds are the highest clouds in the Earth's atmosphere. They are located in the mesosphere at altitudes of around 76 to 85 kilometres (47 to 53 mi). They are normally too faint to be seen, and are visible only when illuminated by sunlight from below the horizon while the lower layers of the atmosphere are in the Earth's shadow.
The large magellanic cloud galaxy has an irregular shape. It does not look like spiral and elliptical galaxies shown in pictures.
By the wind
cloud
Noctilucent clouds can be seen on clear midsummer evenings that form on the border between earth and space. So they are the highest.
cloud can shape in different ways by air Ex: mushroom, dragon, plane if you see a cloud and it looks like something that is a cloud shape
Noctilucent clouds have been documented at heights of 76 to 85 kilometers (47-53 miles). http://science.nasa.gov/headlines/y2008/25aug_nlc.htm
cloud shape
Noctilucent clouds are the highest and least understood. Cirrus and cirrostratus are the high-type clouds. Any high cloud will have the prefix "cirr".
The shape of an electron cloud depends on the energy sublevel. Each electron cloud is different, so there is no definitive shape.
The materials that make up noctilucent clouds are tiny water Ice crystals and dust particles.
With the exception of rare stratospheric noctilucent clouds, cirrus forms the highest cloud layer (also cirrostratus or cirrocumulus). In the tropics (where the troposphere is thicker, that is tropopause is higher) cirrus can generally occur up to 50-60,000 feet (15-18000 metres), sometimes higher when associated with tropical cumulonimbus anvils. Note that the possible height of cloud varies with location and airmass, so the highest cloud can occur in the tropics, the lower heights (with cirrus possible at 10,000 ft or 3500 m) in polar regions.
air?
air?
mesosphere
thin and wispy