Researchers Crack the Mystery of the Missing Sunspots - NASA Science

Researchers Crack the Mystery of the Missing Sunspots - NASA Science: "'Plasma currents deep inside the sun interfered with the formation of sunspots and prolonged solar minimum,' says lead author Dibyendu Nandi of the Indian Institute of Science Education and Research in Kolkata. 'Our conclusions are based on a new computer model of the sun's interior.'"