galaxies

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 days 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 days 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…

2 weeks 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…

2 months ago

A Stellar Stream of Stars, Stolen from Another Galaxy

Modern professional astronomers aren't much like astronomers of old. They don't spend every suitable evening with their eyes glued to…

2 months ago

A Giant Galaxy Seen Lighting Up the Universe Shortly After the Big Bang

The discovery of a bright galaxy that existed 13 billion years ago is shedding light on a period known own…

2 months ago

NGC 2275: An Absolute Unit of Galactic Flocculence

The Hubble Space Telescope has the knack for finding every size and shape of galaxy imaginable – from small, medium…

2 months ago

Astronomers See Through the Milky Way’s Dust to Track Where Radiation is Coming From at the Center of the Galaxy

The center of our very own galaxy might be one of the Universe's most mysterious places. Astronomers have to probe…

2 months ago

Complete and Total Mayhem in a Distant Galaxy Collision

A cluster of galaxies is nothing trivial. The shocks, the turbulence, the energy, as all of that matter and energy…

3 months ago

Quasars are the Biggest Particle Accelerators in the Universe

We puny humans think we can accelerate particles? Look how proud we are of the Large Hadron Collider. But any…

3 months ago