A composite of images of the sun taken by NASA's Solar Dynamics Observatory. (Image: NASA/SDO/AIA/S. Wiessinger) At any given moment, the sun features material leaping off the surface in arcs, flares ...

Just before sunrise and up until 8 a.m., internet newbies post millions of good-morning images to friends, family and strangers. All those early morning well wishes have driven a tenfold increase ...