Focus on the Hercules region. The positions of galaxies are plotted against the reconstructed CosmicFlows-3 density contrast and velocity field, within a slice −2000 < SGX < 2000 km s⁻¹. Galaxy markers are given distinct colors as a function of their void membership. Scale and orientation are given by the 5000 km s⁻¹ long green (SGY) and blue (SGZ) arrows emanating from our position, associated with the cardinal axes of the Supergalactic Coordinate System. The map shows that the galaxies within Void 355 and Void 738 are subject to the evacuation of matter from the Hercules Void, as mapped by the divergent flow at this location. Voids 355 and 738 belong to the same underdense region and may well be counted as a single “Hercules void”.