Illustration of galaxy formation (IMAGE)

University of Copenhagen - Faculty of Science

Illustration of galaxy formation

Caption

Diffuse gas from intergalactic space plummets toward the center, sparking star formation and becoming part of the galaxy’s rotating disk. When stars die, they return their gas to the galaxy (and the intergalactic space), now enriched with heavy elements.

Credit

Credit: Tumlinson et al. (2017).

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