The sun was ‘smiling’ in a NASA photo. It might be a warning for Earth.

Enami TV News: In the image, the trio of patches that make up the “face” — which can’t be seen with human eyes because they’re in the ultraviolet spectrum — are what’s known as coronal holes, or slightly cooler sections of the sun’s outer layer, which usually has a temperature of about 10,000 degrees Fahrenheit.

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Information in this report sourced from: https://www.washingtonpost.com/nation/2022/10/31/smiling-sun-nasa-coronal-hole/.