A new astrophysical study suggests that star formation follows a self-regulating logic rather than randomness. Using entropy, researchers found that the mass of a star cluster constrains the types of stars it can produce—meaning smaller galaxies cannot form the most massive, luminous stars.

This reframes how matter cycles through galaxies and challenges existing models of galaxy evolution. The result is a more predictive framework that could simplify how scientists model the life cycles of galaxies over cosmic time.

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