The sun has begun a new 11-year cycle, and scientists have very different ideas on just how much energy will be available to fuel its eruptions. The consensus view of an international panel of 12 scientists calls for the new cycle, Solar Cycle 25, to be small to average, much like its predecessor, Solar Cycle 24. Scott McIntosh, foresees the sun going gangbusters. The cycle is already off to a fast start, coinciding with the recent publication of McIntosh's paper in Solar Physics. The study, with contributions from several of his colleagues, forecasts the nascent sunspot cycle to become one...