Some guessed the 'spaceship' was a lenticular cloud, which the forecaster said is formed when moist winds are forced over a barrier, such as a mountain. 'This rising motion over the barrier causes ...

The clouds, which are quite rare in the UK, were spotted in northern parts of the country earlier this week, over Gateshead, Newcastle, Cumbria and Scotland.

Parts of the UK were treated to an uncommon phenomenon this week as displays of clouds shaped like UFOs formed across the sky. The clouds are created when strong winds blow over a mountain range or ...

Two or more views of a scene are printed on a thermoplastic sheet of lenticular (concave) lenses that look like parallel ridges (see below). In order to align the image to the lens array ...

Some guessed the 'spaceship' was a lenticular cloud, which the forecaster said is formed when moist winds are forced over a barrier, such as a mountain. 'This rising motion over the barrier ...

“If there is enough moisture in the air, the rising motion of the wave will cause water vapour to condense, forming the unique appearance of lenticular clouds.” There are three main types of ...