A cloud is a little drop of water or frozen crystals suspended in the atmosphere. There are two main types of clouds including the layered and the convective. The colors of clouds tell much about what is going on inside the clouds.
We can see ordinary clouds everyday, but it is rare to see lenticular UFO clouds and many other spectacular clouds. Let's enjoy the gifts of the nature via the following collection of spectacular cloud formations.
Kelvin-Helmholtz instability clouds in San Francisco
Cumulus cloud is a type of cloud with noticeable vertical development
Morning Glory clouds are roll clouds which can be up to 1000 kilometers long and move at speeds up to 60 kilometers per hour.
Polar mesospheric or Notilucent clouds
Roll clouds over Sydney
Polar Stratospheric or Nacreous clouds are clouds in the winter polar stratosphere at altitudes of 15,000-25,000 meter
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Mysterious Phenomena in the worldAbout the Author:
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