solar activity

American  

noun

Astronomy.

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

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Example Sentences

In November 2015, solar activity disrupted air traffic control, leading to chaos in Sweden and some other European airports.

From BBC

To prepare for next year's peak solar activity period, the IIA collaborated with Nasa to study the data it gathered from one of the largest CMEs that Aditya-L1 has recorded until now.

From BBC

Spectacular displays of auroras at abnormally low latitudes were expected again Wednesday night into Thursday, a result of intense solar activity which also carries risks to communication networks.

From Barron's

Scientists believe that billions of years ago, when the Sun and Earth were both young, solar activity was far more intense than it is today.

From Science Daily

This finding therefore deepens our understanding of how solar activity may have created the environmental conditions necessary for life to appear on early Earth, and possibly on other planets as well.

From Science Daily