Untangling the history of the Milky Way. ESO/S Brunier November 27, 2016 A Galah to help capture millions of rainbows to map the history of the Milky Way Jonti Horner, University of Southern Queensland; Jonathan P. Marshall, UNSW , and Sarah Martell, UNSW Understanding how the billions of stars in our galaxy formed and evolved is the subject of a huge galactic archaeology project.