What is this?
volcanic mushroom
UFO
lenticular cloud
unexplained weather phenomenon
Lenticular clouds are stationary clouds that form in the troposphere, typically in perpendicular alignment to the wind direction. They are often comparable in appearance to a lens or saucer. Because of their unique appearance, they have been brought forward as an explanation for some unidentified flying object (UFO) sightings.
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Answers by country
volcanic mushroom
UFO
lenticular cloud
unexplained weather phenomenon
answers
Germany
32
Australia
27
the Philippines
19
Poland
4173
the United Kingdom
50
the United States
84
Greece
15
India
33