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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

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University of Pennsylvania climate scientist Michael Mann noted in a post on Bluesky that other factors, such as volcanic and solar activity, could explain patterns seen in the coral record.

From Los Angeles Times ● Sep. 4, 2026

During the maximum solar activity cycle that comes every 11 years, there can be 10 or more in a single day.

From BBC ● Aug. 14, 2026

Every day, specialists are working on models aiming to explain solar activity, allowing them "to put the Sun back into context within its evolutionary timeline, from its birth to its death," he added.

From Barron's ● Aug. 5, 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

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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