How do sunspots affect earth?

Sunspots are connected with other solar events like flares and coronal mass ejections (CMEs). Oddly, sunspot activity actually can help ham radio reception because the increased radiation causes the atmosphere to bend higher radio frequencies back toward Earth. read more

Sunspots do not have any effect on the Earth in any significant way. If the sun was covered in sunspots, it could result in less light reaching Earth, but not enough to have any negative effect or even be noticed. read more

Sunspots' Effect on Earth - Sunspots' effect on Earth are explained in this section. Learn about sunspots' effect on Earth. read more

This month’s expert, Kenneth R. Lang, professor of astronomy, responds: To most of us, the sun looks like a perfect, white-hot globe, round, smooth and without a blemish. But detailed scrutiny shows that it is often pitted with dark spots, called sunspots. read more