sunspots

1. Dark spots on the surface of the sun caused by magnetic storms.

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

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

If you can elbow your way onto one of Majorca’s sunspots this summer, you will witness two unstoppable forces.

From BBC

The sun's surface is a brilliant display of sunspots and flares driven by the solar magnetic field, which is internally generated through a process called dynamo action.

From Science Daily