This isn't the first time the ESO has shown a love for large captures: it managed to stitch together a massive 9-gigapixel image of the MilkyWay out of thousands of photographs taken with its VISTA telescope earlier this fall.
Hong-Sheng Zhao of Leiden University in the Netherlands calculates that a close encounter with another one of the Milky Way's satellites, the Large Magellanic Cloud, could have knocked Sgr into a closer orbit two or three billion years ago.