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solar activity
noun
the sum of all variable and short-lived disturbances on the sun, as sunspots, prominences, and solar flares.
Example Sentences
This is important because intense solar activity can affect satellite communication and knock out power grids on Earth.
These storms, caused by solar activity, are best known for producing the aurora borealis - the Northern Lights - which have been seen in Wales several times recently.
While solar activity remains elevated, there is a chance of seeing the Northern Lights again tonight, mostly in the north of the UK.
According to 'AuroraWatch UK', solar activity increased with 'amber' and then 'red' alerts being issued late on Tuesday.
With solar activity remaining elevated, there could be another chance to see the Northern Lights, mostly across northern areas of the UK on Wednesday night.
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