Imaginea zilei din astronomie - APOD (Astronomy Picture Of the Day)

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26 Februarie 2017

A Supercell Thunderstorm Cloud Over Montana
Credit Imagine & Copyright: Sean R. Heavey

Explicaţie: Is that a spaceship or a cloud? Although it may seem like an alien mothership, it's actually a impressive thunderstorm cloud called a supercell. Such colossal storm systems center on mesocyclones -- rotating updrafts that can span several kilometers and deliver torrential rain and high winds including tornadoes. Jagged sculptured clouds adorn the supercell's edge, while wind swept dust and rain dominate the center. A tree waits patiently in the foreground. The above supercell cloud was photographed in 2010 July west of Glasgow, Montana, USA, caused minor damage, and lasted several hours before moving on.

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Autori & editori: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
Oficial NASA: Phillip Newman Se aplică drepturi specifice.
Politica de confidenţialitate web a NASA şi anunţuri importante
Un serviciu al: ASD la NASA / GSFC
& Michigan Tech. U.