Have you ever heard of an object called ‘Hanny’s Voorwerp?’  It’s a thin wispy ghost-like blob at the edge of a Galaxy.  It was discovered by Dutch schoolteacher Hanny van Arkel in 2007 as she was classifying galaxies as part of the Galaxy Zoo project.  Since then, astronomers have been studying its origin, as it was the first of a brand new phenomenon in astronomy. This past week, a new data set of wispy trails at the edge of Galaxies have been released as part of a Hubble study by Bill Keel of the University of Alabama, Tuscaloosa.  The new Hubble...