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Scientists Discover New Auroral Phenomenon Hidden in 19-Year-Old Video Footage
(David Knudsen via University of Iowa/YouTube)
SPACE
JACINTA BOWLER10 MAY 2021
Not all auroras slither through the sky like snakes. Some – called diffuse aurora – are more like an even glow dispersed throughout the sky.
Scientists know a fair bit about these diffuse auroras, but an old video from 2002 revealing what seems to be an undocumented auroral phenomenon shows we definitely don't know everything.
"We found these events in a movie taken the night of March 15, 2002 in Churchill, [Manitoba], Canada," the researchers write in a summary of their research.
"They appear as a section of diffuse aurora that rapidly brightens, then disappears and also erases the background aurora. Then, over the course of several tens of seconds, the diffuse aurora recovers to its original brightness."
More:
https://www.sciencealert.com/scientists-discover-a-new-type-of-auroral-phenomenon-from-a-20-year-old-video
