NASA warns 'something unexpected is happening to the Sun' in year that is supposed to be the peak the sunspot cycle

NASA warns 'something unexpected is happening to the Sun' in year that is supposed to be the peak the sunspot cycle | Mail Online: "'Something unexpected' is happening on the Sun, Nasa has warned. This year was supposed to be the year of 'solar maximum,' the peak of the 11-year sunspot cycle. But as this image reveals, solar activity is relatively low."