Scientists are predicting that the sun is heading into an unusual and extended super quiet mode. Around 2020, sunspots may disappear for years, maybe decades, according to AP. Scientists said there is nothing to worry about. Effects from a calmer sun are mostly good. There would be fewer disruptions of satellites and power systems. And it might mean a little less increase in global warming. It has happened before, but not for a couple of centuries. Scientists at a solar physics conference in New Mexico revealed their prediction based on sunspot activity, magnetic field strength and a disappearing solar jet stream. The prediction is specifically aimed at the solar cycle starting in 2020, but experts say the sun already has been unusually quiet for about four years.