X-ray image of the sun, taken by spacecraft on Aug. 4
Solar Blasts Slam Into Earth
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Mr. Kunches said it is too early to know what the effects of the blasts will be. "If it's a really big storm, it still could be active [Saturday] night, but this kind of disturbance level won't be sustained for long," he said.
But Mr. Kunches added, "It seems that the magnetic field is getting hit harder than we thought it would."
The storms are two of three large explosions from the sun's surface since Tuesday, according to NOAA.
The agency has notified U.S. electric-grid and satellite-communication operators of the events, which could interfere with some communications, particularly those that are closest to the South and North Poles, Mr. Kunches said.
"The magnetic poles in both hemispheres are most exposed to charged particles that come from solar wind," he said.
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