Aurora over Icelandic Waterfall

Astronomy Picture of the Day · 2023-07-04 · NASA (public domain)

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Aurora over Icelandic Waterfall — APOD for 2023-07-04

It seemed like the sky exploded. The original idea was to photograph an aurora over a waterfall. After waiting for hours under opaque clouds , though, hope was running out. Others left. Then, unexpectedly, the clouds moved away. Suddenly, particles from a large solar magnetic storm were visible impacting the Earth's upper atmosphere with full effect. The night sky filled with colors and motion in a thrilling auroral display. Struggling to steady the camera from high Earthly winds , the 34 exposures that compose the featured image were taken. The resulting featured composite image shows the photogenic Godafoss (Goðafoss) waterfall in northern Iceland in front of a very active aurora in late February. The solar surface explosion that expelled the energetic particles occurred a few days before . Our Sun is showing an impressive amount of surface activity as it approaches solar maximum , indicating that more impressive auroras are likely to appear in Earth's northern and southern sky over the next few years.

Astronomy Picture of the Day for 2023-07-04 — image & explanation courtesy of NASA (public domain), mirrored at Tukuk-OS for reading and search convenience.

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