sunspots
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The number of sunspots goes through a maximum and minimum about every eleven years. During periods of maximum sunspots, the elementary particles associated with the spots cause disturbances in the atmosphere of the Earth and interfere with radio and television communication.
Example Sentences
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During the peak of the current cycle, which Nasa confirmed occurred in October 2024, a higher number of sunspots led to more frequent eruptions of solar flares and coronal mass ejections.
From BBC
Starspot: A relatively cool, dark region on a star, similar to sunspots on the Sun.
From Science Daily
This means there are lots of sunspots on the surface which are like volcanoes and occasionally erupt.
From BBC
This means there are lots of sunspots on the surface which are a bit like volcanoes and occasionally erupt.
From BBC
During this maximum, the number of sunspots increases which leads to more Coronal Mass Ejections sending charged particles to Earth, creating the aurora.
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.