Sunspots
Sunspots, which can be larger than the Earth, are cooler regions on the Sun, caused by magnetic fields that prevent hot gas from below rising up to the surface.
Herkunftsnachweis:NASA/SDO
Sunspots, which can be larger than the Earth, are cooler regions on the Sun, caused by magnetic fields that prevent hot gas from below rising up to the surface.
Herkunftsnachweis:NASA/SDO