One of the most massive black holes in the universe lurks at the center of the Cosmic Horseshoe
In 2007, astronomers discovered the Cosmic Horseshoe, a gravitationally lensed system of galaxies about 5.5 billion ...
ScienceAlert1 天
Black Hole The Size of 36 Billion Suns Could Lie at The Heart of Cosmic Horseshoe
In 2007, astronomers discovered the Cosmic Horseshoe, a gravitationally lensed system of galaxies about five-and-a-half ...