Large parts of the UK have seen some very rare clouds that looks like a sheet of rainbow across the skies over the last few days. Lots of people thought they were rainbows in the sky or the ...

noctilucent clouds can take on an iridescent, mother-of-pearl quality. The iridescence of the clouds is due to the scattering ...

The Sun's rays scatter against the clouds, creating colorful, "mother-of-pearl" clouds tinged with red and green. Regular Martian clouds are composed of water ice, but researchers believe that ...

It shows colourful "mother-of-pearl" clouds, so-called because of the pretty pastel colours you can see in them. They're made up of frozen carbon dioxide, which you may know as dry ice ...