Explanation:
It was Halloween and the sky looked like a creature. Exactly which creature,
the astrophotographer was unsure (but possibly you can suggest one). Exactly
what caused the eerie apparition was sure: one of the best auroral displays in
recent memory. This spectacular aurora had an unusually high degree of detail.
Pictured above, the vivid green and purple auroral colors are caused by high
atmospheric oxygen and hydrogen reacting to a burst of incoming electrons.
Birch trees in Tromsø, Norway formed an also eerie foreground. Many other
photogenic auroras have been triggered by recent energetic flares on the Sun.
هیچ نظری موجود نیست:
ارسال یک نظر