Using the NASA/ESA Hubble Space Telescope, astronomers have discovered a supermassive black hole with a mass of 17 billion Suns in the center of the relatively isolated elliptical galaxy NGC 1600. The elliptical galaxy NGC 1600, approximately 200 million light-years away – shown in the center of the Hubble image and highlighted in the box – hosts in its centre one of the biggest supermassive black holes known. Image credit: NASA / ESA...