How can some galaxies survive with so few stars? The answer could be dark matter.
Live Fast, Die Young
Some galaxies have a period of extremely rapid star formation, and this leads to their early demise.
How To Get Rid Of A Black Hole
How does a galaxy get rid of a supermassive black hole?
Supermassive Black Holes Can Trigger Star Formation
Supermassive black holes lurk in the hearts of galaxies, and they can trigger the formation of new stars.
ALMA Sees Hydrogen Super-Halos Around Young Spiral Galaxies
New observations from ALMA show that early galaxies were surrounded by large halos of hydrogen gas.
Deep Field Black Holes
A new x-ray deep field image supports the idea that supermassive black holes formed before galaxies did.
The Stars Uncounted
The relativistic effect of gravitational lensing allows astronomers to see the faintest galaxies.
Order Of Magnitude
If everyone gave names to 200 galaxies, there would still be billions of nameless galaxies in the cosmos.
ALMA Deep Field
ALMA has seen clues of star formation in some of the most distant galaxies.