The Sun could be heading into period of extended calm

Sept. 23, 2009

Researchers in the US may have discovered further evidence that the Sun is heading towards an extended period of quiet activity, the like of which has not been seen since the 17th century. The impact this may have on climate is poorly understood but it would be good news for satellite communications, which would continue to avoid the harsher impacts of space weather.

Scientists have long known that the Sun's magnetic activity varies over a cycle of approximately 11 years. Greater magnetic activity leads to more "sunspots", or darker patches visible on the solar surface. These sunspots are regions where the magnetic field lines have become twisted due to differential rotation in the outer layers of the Sun.
the rest image for Sept. 24