A large sunspot has grown into a beta-gamma magnetic classification, which is linked to solar flares, and is rotating over the Earth-facing side of the sun.
A few days ago, the sunspot known as AR3068 was first spotted rotating into view over the eastern horizon of the sun. Since then, it has gotten bigger.
Because of strong magnetic fields that prevent heat from rising up beneath the surface, sunspots are areas in the sun’s atmosphere that aren’t quite as hot as the surrounding areas. Sunspots are dark because they are relatively cool.
Sunspots are known to be sources of solar flares and other material eruptions known as coronal mass ejections (CMEs) due to the strong magnetic fields associated with them. When the magnetic field lines abruptly change or realign, these explosions take place.