Every time a comet slowly approaches the inner solar system, astronomers get excited.  We are hopeless romantics, wishing the new comet will brighten enough to be labeled the next ‘comet of the century.’  Yet we have had our hearts broken before, more often than not.  The most recent fizzled comet was nearly two years ago with the burn up of comet ISON as it passed close to the Sun.  It made for a spectacular view for SOHO and SDO looking at the Sun, but for the rest of us it was just another heartbreak.  But once again we have hope; A...