Radiation hazards for astronauts and satellites can be caused by a quiet Sun. Weak solar winds allow more galactic cosmic rays into the inner solar system. Weather on Earth can also be affected.
Moreover, what are the different types of solar activity?
Most ejections originate from active regions on the Sun's surface, such as sunspot groupings associated with frequent flares. Other forms of solar activity frequently associcated with coronal mass ejections are eruptive prominences, coronal dimming, coronal waves and Moreton waves, also called solar tsunami.
What is the cause of solar activity?
Solar flares impact Earth only when they occur on the side of the sun facing Earth. Coronal mass ejections, also called CMEs, are large clouds of plasma and magnetic field that erupt from the sun.
What is the current solar cycle?
Solar Cycle 24 is the 24th solar cycle since 1755, when extensive recording of solar sunspot activity began. It is the current solar cycle, and began in December 2008 with a smoothed minimum of 2.2 (SIDC formula).