galaxies
A Galaxy is Making New Stars Faster Than its Black Hole Can Starve Them for Fuel
A monster lurks at the heart of many galaxies – even our own Milky Way. This monster possesses the mass…
The family tree of the Milky Way. The mergers that gave us the galaxy we see today
Galaxies build themselves up slowly over time by cannibalizing their neighbors. Using an advanced suite of computer simulations, researchers have…
The Spherical Structure at the Core of the Milky Way Formed in a Single Burst of Star Formation
Like other spiral galaxies, the Milky Way has a bulging sphere of stars in its center. It's called "The Bulge,"…
Galaxies Grew Quickly and Early On in the Universe
The behaviour of galaxies in the early Universe attracts a lot of attention from researchers. In fact, everything about the…
Astronomers Map Out the Raw Material for New Star Formation in the Milky Way
A team of researchers has discovered a complex network of filamentary structures in the Milky Way. The structures are made…
7% of the Stars in the Milky Way’s Center Came From a Single Globular Cluster That Got Too Close and Was Broken Up
The heart of the Milky Way can be a mysterious place. A gigantic black hole resides there, and it's surrounded…
A Galaxy has been Found That’s as Bright as a Quasar… But it’s Not a Quasar
Astronomers have found a new type of galaxy that is very old, very distant and very bright in ultraviolet light.…
The Milky Way is Already Starting to Digest the Magellanic Clouds, Starting With Their Protective Halos of Hot Gas
Massive galaxies like our Milky Way gain mass by absorbing smaller galaxies. The Large Magellanic Cloud and the Small Magellanic…
Extreme galaxies depend on extreme conditions for their formation
Some galaxies are too small, and some galaxies are too big, while others are just right. A new survey of…
Hubble Shows the True Size of Andromeda
It's possible that you've seen the Andromeda galaxy (M31) without even realizing it. The massive spiral galaxy appears as a…