How nearby galaxies form their stars


The star-formation activity of typical, nearby galaxies is found to scale proportionally with the amount of gas present in these galaxies.

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It was always in the mind of scientists and always will be about the formation of stars, so one theory is propagating these days. Stars are born in dense clouds of molecular hydrogen gas that permeate the interstellar space of most galaxies. While star-forming physics is complex, significant progress has been made in recent years in understanding how stars form in a galactic environment. And that galactic environment actually defines the level of formation of stars.

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