They exist because of their enormous black holes. The lensing foreground galaxy in the Cosmic Horseshoe is named LRG 3-757. It's a particular type of rare galaxy called a luminous red galaxy (LRG ...

Astronomers have discovered a record-breaking ultra-massive black hole, weighing 36 billion solar masses, at the heart of the ...

But, not all galaxies are created equal, it seems, as astronomers have discovered what they believe is a “dark galaxy,” a galaxy that doesn’t give off visible light. In most cases ...