%0 Journal Article %T Grand challenges in the physics of the sun and sun-like stars %A Michael J. Thompson %J Frontiers in Astronomy and Space Sciences %D 2014 %I Frontiers Media %R 10.3389/fspas.2014.00001 %K solar dynamo %K stellar dynamos %K space weather %K coronal magnetic field %K chromosphere %U http://www.frontiersin.org/Journal/10.3389/fspas.2014.00001/full