The galaxy at the center of this image contains an X-ray source, CID-42, with exceptional properties. After combining data from several telescopes — including NASA’s Chandra X-ray Observatory — researchers think that CID-42 contains a massive black hole being ejected from its host galaxy at several million miles per hour.
The main panel is a wide-field image of CID-42 and its surroundings taken by the Canada-French-Hawaii Telescope and the Hubble Space Telescope in optical light. The galaxy is located nearly four billion light years from Earth. The outlined box on the main panel represents the more localized view of CID-42 that is shown in the three separate boxes on the right-hand side of the graphic. At the top is an image from the Chandra X-ray Observatory. The X-ray emission is concentrated in a single source, corresponding to one of the two sources seen in deep observations by Hubble, which is shown in the middle inset box. The bottom inset shows how the X-rays align with the optical data in the two insets above.