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#VonKarmanVortices form when fast-moving winds encounter an obstacle, such as an island or mountain, disrupting airflow and creating alternating spinning eddies on either side.
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The #vortices over #HeardIsland were instead marked by dense, perfectly circular gaps in the clouds, making this event stand out from typical occurrences.
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#NASA image by Jeff Schmaltz, LANCE/EOSDIS Rapid Response.
https://timesofindia.indiatimes.com/science/nasa-captured-10-mysterious-dark-voids-over-remote-island-near-antarctica-what-they-reveal-about-the-bizarre-natural-phenomena/articleshow/123305717.cms