The Sun goes through regular cycles of approximately 11-years, during which time activity on the Sun, such as solar eruptions and sunspots, wax and wane - as seen in these images.
The Sun goes through regular cycles of activity lasting approximately 11 years. During the most active part of the cycle, known as solar maximum, the Sun can unleash immense explosions of light, energy, and solar radiation – all of which create conditions known as space weather. Space weather can affect satellites and astronauts in space, as well as communications systems – such as radio and GPS – and power grids on Earth. When the Sun is most active, space weather events become more frequent.
