Last Updated
：2025/11/29
coronal hole
（ plural ）
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(astrophysics) A region in the corona of a star where magnetic field lines extend out into space, allowing solar wind to escape.
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coronal hole
Scientists observed a vast coronal hole that released a high-speed stream of solar wind toward Earth.
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Scientists observed a vast coronal hole that released a high-speed stream of solar wind toward Earth.
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