A new wide-field panorama reveals more than a thousand supermassive black holes in the centers of galaxies, some up to several billion times more massive than the sun. This survey was taken in a region of the Bootes constellation. At 9.3 square degrees, it is over 40 times larger than the full moon seen on the night sky, which is also shown in this graphic for scale. Credit: X-ray: NASA/CXC/CfA/R.Hickox et al.; Moon: NASA/JPL
