It's a particular type of rare galaxy called a luminous red galaxy (LRG), which are extremely bright in infrared. LRG 3-757 is also extremely massive, about 100 times more massive than the Milky ...
LRG 3-757, a Luminous Red Galaxy (LRG), is about 100 times more massive than the Milky Way. Now, astronomers have confirmed that this colossal galaxy hosts one of the most massive black holes ever ...