The 11 year long solar cycle is marked by two extremes, solar minimum and solar maximum. Solar minimum is the period of least solar activity in the solar cycle of the sun. During this time sunspot and solar flare activity diminishes, and often does not occur for days at a time.
When spots begin to appear on the sun once again, scientists know that the sun is heading into a new season of extreme solar activity. At the cycle's peak, solar maximum, the sun is continually peppered with spots, solar flares erupt, and the sun hurls billion-ton clouds of electrified gas into space. [ ...more ]