Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jan 31, 2014
Solar physicists around the world today are wondering: has the Sun fallen silent? In 2013, the Sun began the peak phase of its 11-year sun spot cycle called the Solar Maximum when sun spot production should be at its highest. However, the lack of sun spot activity has left solar physicists startled.