Composite image of Arp 16, also known as M66.

Chandra (X-ray, blue), Spitzer (infrared, red), Hubble and VLT (visible light, yellow). Insert shows hot gas near the supermassive black hole.

Credit: NASA, STScI, JPL-Caltech, ESO, WFI, CXC, Ohio State Univ., C.Grier et al
https://chandra.harvard.edu/photo/2012/ngc3627/