an image of a black hole in the sky

Infrared-Radio Image of the Andromeda Galaxy (M31) Caption: The Andromeda galaxy, or M31, is shown here in far-infrared and radio wavelengths of light. Credits: Image - ESA, NASA, NASA-JPL, Caltech, Christopher Clark (STScI), R. Braun (SKA Observatory), C. Nieten (MPI Radioastronomie), Matt Smith (Cardiff University)