Researchers detect cold gas pipelines feeding early, massive galaxies – Science Codex

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.
Massive galaxies found in the early universe needed a lot of cold gas–a store totaling as much as 100 billion times the mass of our sun.
But where did these early, super-sized galaxies get that much cold gas when they were hemmed in by hotter surroundings?
In a new study, astronomers led by the University of Iowa report direct,…

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