galaxy growth

Do galaxies have a 'kill switch' that makes them stop growing?

By Paul Sutter Published 9 June 26

Above a certain threshold, galaxies stop growing , no matter how much raw material they have on hand. The question is: what flips the switch?

James Webb Space Telescope discovers young galaxies age rapidly: 'It's like seeing 2-year-old children act like teenagers'

By Robert Lea Published 20 January 26

"The knowledge of these will ultimately help us understand the formation of the first stars and planets and how our own Milky Way came into being."

How did the universe's most monstrous giant galaxies grow? Scientists may finally know

By Robert Lea Published 8 December 24

Astronomers have discovered that large flows of cold gas created by collisions between galaxies in the early universe may have forged some of the most monstrous star systems.

Cosmic Giant Takes on Galactic Dwarf in Adorable Video

By Calla Cofield Published 17 July 15

When cosmic bullies collide with galactic dwarfs, the big guy comes out on top. A new study shows that star formation is halted in smaller galaxies that collide with large ones.

Tiny Galactic Building Blocks Spotted

By Dave Mosher Published 6 September 07

The most distant galaxies ever detected hint at their Lego-like growth.