NASA once released the sun “smiley face”

NASA once released the sun’s “smiley face” has become aggressive

get 10 1 NASA once released the sun "smiley face"
get 10 3 NASA once released the sun "smiley face"
image sourceļ¼šNASA/GSFC/SDO/Twitter

On November 22, local time, the official account of NASA‘s “NASA Sun” tweeted a new photo.

It wrote that the sun’s “smiling face” captured last month has begun to frown and look a bit annoyed.

Last month, it posted an image of the sun taken by the Solar Dynamics Observatory, which showed the sun looking as if it was smiling.

These dark spots on the sun are called coronal holes, areas where high-speed solar winds pour into space.

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