Yet, despite observing thousands of galaxies, astronomers have only found one close pair of supermassive black holes, separated by 24 light-years in elliptical galaxy
What still puzzles the scientists is the proximity of d1005+68 to the dwarf elliptical galaxy
designated BK5N - a satellite of M81.
The newly discovered supersized black hole resides in the center of a massive elliptical galaxy
, NGC 1600, located in a cosmic backwater, a small grouping of 20 or so galaxies, said lead discoverer Chung-Pei Ma, a University of California-Berkeley astronomer and head of the MASSIVE Survey, a research project analyzing vast galaxies and supermassive black holes in the universe.
A fully developed elliptical galaxy
is a gas-deficient gathering of ancient stars theorized to develop from the inside out, with a compact core marking its beginnings.
The giant elliptical galaxy
M87, in contrast, holds thousands.
Caption: The giant elliptical galaxy
NGC 5044, seen In this composite image, is filled with cold gas, yet it is not making stars.
Eventually, the duo will settle down to form one super-giant elliptical galaxy
M105 is a giant elliptical galaxy
, the brightest of the M96 Group, and a fairly typical representative of its class.
At a distance of around 12 million light years away, Centaurus A is the closest large elliptical galaxy
to our own Milky Way.
Following suspected aliens all the way from the south of England to the remote Scottish island of Skye, Jim, Charlie, and Becky are captured, but manage to escape from a planet in the "Sagittarian Dwarf Elliptical Galaxy
," foil a dastardly alien plot, and save the world.
But today, 10 billion years later, it would have grown into a giant elliptical galaxy
much more massive than the Milky Way.
Krupp pointed to M87, a fuzzy elliptical galaxy
50 million light years from Earth with a telltale black hole.