Solar prominences are large, bright features that extend outward from the surface of the Sun. They are made of plasma, a hot, ionized gas, and can be seen as loops or arches that rise above the solar surface. These structures are often associated with sunspots and can last for days or even weeks. Prominences are caused by the Sun's magnetic field, which can trap and hold the plasma in place. When the magnetic field lines become unstable, the prominence can erupt, sending material into space. This process can influence space weather and may impact Earth by affecting satellite operations and communication systems.