Sunspots -- dark areas on the sun -- help scientists track activity on the surface of our solar system's star. These dark spots are the origin point for the explosive flares and ejections that release light, solar material and energy into space.
원문출처 : https://www.cnn.com/2020/12/08/world/sunspot-high-res-image-scn-trnd/index.html
원문출처 : https://www.cnn.com/2020/12/08/world/sunspot-high-res-image-scn-trnd/index.html