To come into being, galaxies need a steady diet of cold gases to undergo gravitational collapse. The larger the galaxy, the more cold gas it needs to coalesce and to grow.
![](https://scx1.b-cdn.net/csz/news/tmb/2021/35-researchersd.jpg)
Source:
https://phys.org/news/2021-02-cold-gas-pipelines-early-massive.html
Only the Autodidact is Free
To come into being, galaxies need a steady diet of cold gases to undergo gravitational collapse. The larger the galaxy, the more cold gas it needs to coalesce and to grow.
Source:
https://phys.org/news/2021-02-cold-gas-pipelines-early-massive.html