Cosmic Clock Study Reveals Impact of Gaia-Sausage-Enceladus Merger on Milky Way

New research utilizes a 'single cosmic clock' to investigate the profound impact of the Gaia-Sausage-Enceladus (GSE) merger, the Milky Way's last significant merger event. The study sheds light on the thick-to-thin disc transition, gas disc shrinking, and bar formation within our galaxy, addressing long-standing questions about its evolutionary history. This is a preliminary, non-peer-reviewed finding.