solar activity

noun

Astronomy.

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

Example Sentences

Most significantly, advances in tracking solar activity could strengthen our ability to safeguard critical technologies, including navigation and communication satellites, aviation systems, and power grids on Earth.

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Wait for enhanced solar activity and check the weather, because the lights will not be visible in a cloudy sky, he added.

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Heighted solar activity could lead to the Northern Lights being visible further south than usual, with sightings possible with the naked eye.

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By Wednesday night no significant solar activity is currently expected, meaning less chance of seeing the Northern Lights.

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This is important because intense solar activity can affect satellite communication and knock out power grids on Earth.

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