Perceiving the Invisible

Black holes can’t be seen, but their location can be plotted by measuring their effect on the orbits of surrounding stars. Clouds of interstellar gas and dust are pulled in, and whole stars that venture too close are torn apart and devoured.
Jason Treat and Alexander Stegmaier, NGM Staff. Art by Mark A. Garlick
Sources: Avery Broderick, Perimeter Institute for Theoretical Physics, University of Waterloo, Canada; UCLA Galactic Center Group