The team, including GWAC researcherDr. Sarah Burke-Spolaor,used NASA’s Chandra X-ray Observatory and the Hubble Space Telescope to scope out an area in the center of a distant galaxy cluster where a supermassive black hole should be—but isn’t.
Read more about hunt for the missing giant black hole here:https://www.nasa.gov/mission_pages/chandra/images/on-the-hunt-for-a-missing-giant-black-hole.html