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Galaxies and Cosmic HistoryModule 3Formation, Feedback, and Mergers
Module 3 / Lesson 9 of 2441 min
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How Did the First Galaxies Begin to Assemble?

Which early structures are observed, and which assembly steps come from models?

Compare real Webb population snapshots with a four-state assembly model for gravitational concentration, gas supply, clumpy star formation, feedback, and small encounters.

An original reconstruction of a young clumpy proto-galaxy fed by faint gas filaments, with a small companion nearby.
Vastward-generated artistic reconstruction of early galaxy assembly. It is not a Webb photograph; real JADES observations appear below.

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