To create this unprecedented view of the Milky Way, ESO combined thousands of individual images from VISTA, taken through three different infrared filters, into a single monumental mosaic. These data form part of the VVV public survey and have been used to study a much larger number of individual stars in the central parts of the Milky Way than ever before. Because VISTA has a camera sensitive to infrared light it can see through much of the dust blocking the view for optical telescopes. The results are truly mesmerizing!
More info here. See a zoomable version of the image here.
