galaxies

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…

2 weeks ago

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,"…

4 weeks ago

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…

1 month ago

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…

1 month ago

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…

2 months ago

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.…

2 months ago

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…

3 months ago

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…

3 months ago

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…

3 months ago

What Shuts Down a Galaxy’s Star Formation?

A new study finds that while black holes drive the formation of galaxies, they are also what kills them in…

4 months ago