Astronomers have released the largest-ever 2D map of our Universe, charting nearly 4 billion stars, galaxies and other objects across roughly 75% of the sky. Created as part of the DESI Legacy Imaging Surveys, the map is publicly viewable through the Legacy Survey Sky Viewer. The new map builds on earlier versions from the DESI Legacy Imaging Surveys that have already proved invaluable. “When you’re working with astronomical objects today, you often start by pulling up the Legacy Imaging Viewer to see what you’re looking at.” “The DESI Imaging Legacy Surveys are just one step in this venerable human tradition.”