Nombre total de pages vues

Affichage des articles dont le libellé est ASTRONOMY - The Aurora Tree. Afficher tous les articles
Affichage des articles dont le libellé est ASTRONOMY - The Aurora Tree. Afficher tous les articles

28/02/2021

ASTRONOMY - The Aurora Tree

 2021 February 28

See Explanation.  Clicking on the picture will download
the highest resolution version available.

The Aurora Tree
Image Credit & Copyright: Alyn Wallace

Explanation: Yes, but can your tree do this? Pictured is a visual coincidence between the dark branches of a nearby tree and bright glow of a distant aurora. The beauty of the aurora -- combined with how it seemed to mimic a tree right nearby -- mesmerized the photographer to such a degree that he momentarily forgot to take pictures. When viewed at the right angle, it seemed that this tree had aurora for leaves. Fortunately, before the aurora morphed into a different overall shape, he came to his senses and capture the awe-inspiring momentary coincidence. Typically triggered by solar explosions, aurora are caused by high energy electrons impacting the Earth's atmosphere around 150 kilometers up. The unusual Earth-sky collaboration was witnessed in March of 2017 in Iceland.

BIOMES - Prairies - savanes - brousses

Des prairies, des savanes et des brousses, il y en a aussi dans les régions tempérées. FuturaSciences