3 septiembre 2014
Approximately every 11 years, the sun undergoes a complete personality change from quiet and calm to violently active. However, the timing of the solar cycle is far from precise. Now, researchers have discovered a new marker to track the course of the solar cycle — brightpoints, little bright spots in the solar atmosphere that allow us to observe the constant roiling of material inside the sun.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/26tV1RUjXIY/140903104743.htm
