galaxies

A plasma-spewing black hole is killing a neighboring galaxy's ability to make stars

This is the real star killer.

By Cassidy Ward | 

3 months ago

Black hole delivery pipeline may feed a nearby galaxy

A medium-sized black hole is headed directly toward another medium-sized black hole.

By Phil Plait | 

5 months ago

Astronomers find dark matter from 12 billion years ago

New method sees unprecedentedly far back in the history of the Universe.

By Phil Plait | 

5 months ago

Some orphan gamma-ray bursts actually live in tiny faint galaxies

Don’t you hate it when colliding neutron stars outshine their tiny dim host galaxies?

By Phil Plait | 

5 months ago

Head-on cosmic collision: The incredible Cartwheel galaxy seen by JWST

One of the weirdest galaxies in the heavens glows beautifully in new images.

By Phil Plait | 

6 months ago

In the early Universe, dark galaxies swarmed

They were dark on the outside, but broiling star-forming chaos on the inside.

By Phil Plait | 

6 months ago

Did JWST find the most distant galaxy ever seen? Maaaaaybe.

GLASSz13 may be — MAY be — the most distant galaxy ever detected.

By Phil Plait | 

6 months ago

Blue blobs turn out to be orphan star clusters made of gas cast-off from galaxies

Stripped gas condenses to form massive blue stars.

By Phil Plait | 

6 months ago

The first JWST images of the infrared sky are here and they do *not* disappoint

My God. It’s full of… the Universe.

By Phil Plait | 

6 months ago

This galaxy was already grown-up and spinning 13.3 billion years ago!

JD1 shows signs of coherent rotation when it was less than 500 million years old.

By Phil Plait | 

6 months ago