The sun is in the pits of the deepest solar minimum in over a century. Weeks and sometimes whole months go by without even a single tiny sunspot. This quiet period has dragged on for more than two years, prompting some observers to wonder, are sunspots disappearing? Quiet suns come along every 11 years or so -- It's a natural part of the sunspot cycle of magnetic activity related to sunspots, solar flares, and interplanetary storms known as coronal mass ejections (CMEs). However, this year we have experienced an unusually long and deep solar minimum. Scientists from the National Solar Observatory (NSO) in Tucson, Arizona believe they have found the answer. The researchers have discovered that a solar jet stream deep inside the Sun is migrating slower than usual through the star's interior, giving rise to the current lack of sunspots and low solar activity.