The supermassive black hole Sagittarius A* (Sgr A*) located at the center of our galaxy makes a repeat appearance near the top of our list in both scientific importance and popularity.

Since it is the nearest supermassive black hole, it seems a good bet to remain high on everyone's list in years to come as astronomers seek a much better understanding of how supermassive black holes grow and how they influence the evolution of the galaxies in which they reside. [Full Story]