Universe Today (@universetoday.com)

One of the Most Massive Black Holes in the Universe Lurks at the Center of the Cosmic Horsehoe In 2007, astronomers discovered the Cosmic Horseshoe, a gravitationally lensed system of galaxies about five-and-a-half billion light-years away. The foreground galaxy’s mass magnifies and distorts the image of a distant background galaxy whose light has travelled for billions of years before reaching us. The foreground and background galaxies are in such perfect alignment that they … Continue reading "One of the Most Massive Black Holes in the Universe Lurks at the Center of the Cosmic Horsehoe" https://www.universetoday.com/171042/one-of-the-most-massive-black-holes-in-the-universe-lurks-at-the-center-of-the-cosmic-horsehoe/