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solar activity

American  

noun

Astronomy.
  1. the sum of all variable and short-lived disturbances on the sun, as sunspots, prominences, and solar flares.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

By improving scientists' understanding of these unusual solar events, the research may also strengthen space weather forecasting, helping protect satellites and spacecraft from dangerous solar activity.

From Science Daily • May 23, 2026

Instead of disappearing, the radio burst continued for an astonishing 19 days, setting a new record for this type of solar activity.

From Science Daily • May 23, 2026

The Northern Lights were seen in the UK again on Monday night following an increase in solar activity over the last few days.

From BBC • Mar. 24, 2026

The natural phenomenon - known as the Aurora Borealis - was the result of increased solar activity sending energy towards Earth and interacting with our atmosphere.

From BBC • Mar. 21, 2026

His launch had been delayed due to various technical problems and high solar activity.

From "Women in Space" by Karen Bush Gibson

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