Honestly this could be the name of a new TV show, similar to ‘when buildings collapse,’ or ‘here’s what Kim Kardashian did today.’ I’ll take the colliding galaxies, simply because they can hold my attention longer.  Galaxy collisions are some of the most massive and long term events in the universe.  The result is the formation of billions of stars, the change in orbit of Billions more, and the complete restructuring of a galaxy.  Since we see a snapshot of the Universe whenever we look at a single galaxy, we tend to see collisions happening at all stages of the...