Coronal holes are common; there is “nothing unusual here,” Scott McIntosh, a solar physicist and the deputy director of the National Center for Atmospheric Research, told Insider in an email.

Holes like this are part of the sun’s normal activity, but McIntosh said that they are “not well understood” and called these events “the ‘dark side’ of solar activity.”

Coronal holes are the source of rapid solar winds, which reach speeds of about 500-800 km per second, Young wrote. The solar winds from this coronal hole are scheduled to reach Earth by the end of this week.

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“We will probably start seeing the effects of the high-speed wind on March 24,” Young added. “When the high-speed wind reaches Earth, the particles and the magnetic field it carries will interact with Earth’s magnetic field, effectively rattling it or like ringing a bell.”

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