Red sprites

Référence de la vidéo 12080890
Footage of a thunderstorm, with portions slowed down to show red sprites. Red sprites are faint high-altitude electric discharges. They are triggered by positive cloud-to-ground lightning in the storm below. They can rise to heights of 97 kilometres, reaching the bottom of the ionosphere and the edge of space. They last for a few thousandths of a second, and are only visible under the right conditions. Their existence was only confirmed in 1989 and their formation is still not fully understood. Filmed in Colorado, USA.
Licence : Libre de droits
Crédit : Science Photo Library / Weathervideohd.tv / Sky Fire
Model Release : Non requis
Durée : 23 Secondes
Aspect ratio : 4/3
Restrictions : -

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