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The above image, generated by @medro-martin is available for unrestricted use under a CC by 4.0 License.

BRIEF DESCRIPTION

A mushroom cloud is a distinctive pyrocumulus mushroom-shaped cloud of debris/smoke and usually condensed water vapor resulting from a large explosion. The effect is most commonly associated with a nuclear explosion, but any sufficiently energetic detonation or deflagration will produce the same effect. They can be caused by powerful conventional weapons, like thermobaric weapons, including the ATBIP and GBU-43/B Massive Ordnance Air Blast. Some volcanic eruptions and impact events can produce natural mushroom clouds.

References (for the description)

• https://en.wikipedia.org/wiki/Mushroom_cloud