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On April 21, 2023, NOAA satellites detected a coronal mass ejection

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from the sun, which hurled plasma at two 
million miles per hour toward Earth.

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This eruption produced a geomagnetic storm on Earth.

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GOES-16’s SUVI instrument observed the event as it occurred, while

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NOAA’s DSCOVR satellite measured the solar winds the storm produced.

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This allowed NOAA to issue warnings for possible 
impacts of the storm on Earth.

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Geomagnetic storms can affect electrical grids, spacecraft, radio frequencies, GPS signals, and astronauts in space.

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On April 23, the particles reached Earth’s upper atmosphere and caused

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and caused an aurora in both the Northern and Southern Hemispheres.

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NOAA’s Joint Polar Satellite System captured images 
showing the extent of the aurora.

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This is the third severe geomagnetic storm 
since Solar Cycle 25 began in 2019.

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The sun’s activity is expected to continue ramping up until July 2025.

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As Solar Cycle 25 continues, NOAA satellites
 will be monitoring the sun’s activity.

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Earth From Orbit: Large Geomagnetic Storm Hits Earth

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NASA Meatball

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