APOD: Spiral Aurora over Icelandic Divide (2023 Jul 30)

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APOD Robot
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APOD: Spiral Aurora over Icelandic Divide (2023 Jul 30)

Post by APOD Robot » Sun Jul 30, 2023 4:06 am

Image Spiral Aurora over Icelandic Divide

Explanation: Admire the beauty but fear the beast. The beauty is the aurora overhead, here taking the form of a great green spiral, seen between picturesque clouds with the bright Moon to the side and stars in the background. The beast is the wave of charged particles that creates the aurora but might, one day, impair civilization. In 1859, following notable auroras seen all across the globe, a pulse of charged particles from a coronal mass ejection (CME) associated with a solar flare impacted Earth's magnetosphere so forcefully that it created the Carrington Event. This assault from the Sun compressed the Earth's magnetic field so violently that it created high currents and sparks along telegraph wires, shocking many telegraph operators. Were a Carrington-class event to impact the Earth today, speculation holds that damage might occur to global power grids and electronics on a scale never yet experienced. The featured aurora was imaged in 2016 over Thingvallavatn Lake in Iceland, a lake that partly fills a fault that divides Earth's large Eurasian and North American tectonic plates.

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orin stepanek
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Re: APOD: Spiral Aurora over Icelandic Divide (2023 Jul 30)

Post by orin stepanek » Sun Jul 30, 2023 4:19 pm

AuroraPingvllir_Casado_960.jpg
Beautiful spiral Aurora! I've never seen one so
fancy! 8-)
400px-goat_with_spiral_horns.jpg
Me thinks he got his head caught in a blender!
:evil:
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Orin

Smile today; tomorrow's another day!